Symmetry

23 Sunday Dec 2018

Posted by petersironwood in management, psychology, Uncategorized

Tags

Business, Design, HCI, human factors, Human-Computer Interaction, politics, truth, UX, Web design

{Something went wrong with WordPress the first two times I tried to post this. I tried to track it down. As best I can tell, my problems came from trying to cut and paste pictures from my Pages file. Even though it looked fine in the editing interface, it appeared blank in the actual viewing interface.}

Symmetry

(Original, free-hand drawing by Zoe Colier).

There are many varieties of symmetry. In many cases, symmetry exists rampantly in nature and symmetry is incorporated into many human designs as well. In this short essay, I want to remind people of several varieties of symmetry and then show how symmetry may also be used as a tool of thought to help solve problems by simplifying the space of possibilities that must be considered.

Symmetry is a concept with far broader application than cutting out paper snowflakes or choosing a nice looking Christmas Tree, Menorah or other Holiday decoration. It is fundamental in logic, mathematics, physics, chemistry, biology, and even in social science. Symmetry exists at many different scales as well. Planets are generally roughly spherical and their orbits are roughly circular.

The human body, along with most other animals, exhibits rough bilateral symmetry in external appearance. If you examine your own fingerprints or the pattern of your moles, for instance, you will see that one side of your body looks slightly different from a mirror image. If, like me, you are a righty who play tennis, you will find the forearm muscles on your right arm are slightly larger than those on the left. What is remarkable to me is not that there are slight variations between left and right but just how slight those variations are! And, we are not alone. Fish, insects, flatworms, roundworms, snakes, turtles, lizards, horses, dogs, cats, apes, and humans are all roughly bilaterally symmetrical in appearance. I say “in appearance” because our internal arrangement of organs is not at all symmetrical.

External Appearance and Internal Organs

In general, it seems to me that most animals possess more complete or “perfect” bilateral symmetry than do most plants. I suspect that this is because animals generally move through a physical environment. Since we can move around, the environmental forces are generally symmetrical and so our ability to react to those environmental forces is also symmetrical. A tree, on the other hand, may have a genetic “blueprint” to be bilaterally or (more likely) radially symmetrical, but it may be subject to strong asymmetrical forces such as wind, a water source, or sunlight versus shade.

Our designed objects are also most often (at least) bilaterally symmetrical, and particularly for those objects which must interact and move through the physical world. Cars, boats, motorcycles, busses, trains, trucks, bikes, skis, surfboards, roller skates, ice skates, snowshoes and tennis shoes all tend to be bilaterally symmetrical. On the inside, however, again just like us, there are often some irregularities. The arrangement of controls of the car, for instance, are asymmetrical. (Each control in itself often does show symmetry. In some cases, this makes it easier to use, especially without looking. I suspect that the symmetry may often be for aesthetic reasons, for ease of manufacturing, for ease of maintenance or replacement or some combination.) The asymmetry of arrangement “works” because the arrangement of displays and controls does not interact with the natural world the way that the car body and wheels do. The controls are designed to interact with a human being. There are also rough conventions for where controls are laid out, how they operate, and what each type looks like. Asymmetry of arrangement is also evident under the hood. However, some of the components such as the engine, the battery, the radiator have symmetry within them. The radiator, which arguably has the most interaction with the outside world, is symmetrically placed though its plumbing is not.

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In the design of User Interaction and Experience, an argument can be made for certain kinds of symmetry. For example, in the Mac editor Pages, which I am using to write this, if the B for bold button background turns blue when bolding is turned on, I expect the background will turn back the way it was (white) when bolding is turned back off. I also expect that italics and underlining will behave the same way, especially because all three are in the same toolbar.

Where possible, it also generally makes sense, I believe, to design so that the functionality of a system is symmetrical. This isn’t always possible. Some actions are necessarily irreversible. If you don’t believe me, ask anyone who has toddlers or who has cats as pets. In the real world, if you shoot someone dead, you cannot “unshoot” them. Unlike a computer system who asks, “Do you really want to delete all your files?” before doing so, guns do not ask that. If you are designing what can be done with a toy robot however, if you can make it go forward, you want to make it so it can go back as well. If it can turn right 90 degrees, you would like to enable it to turn left 90 degrees. Saying, “Oh, yes, but don’t you see, you can, in effect, make it turn left 90 degrees by making it turn right 90 degrees three times?!” does not cut it, IMHO.

Typically, you not only want the functionality to be symmetrical, you also want the control functions and appearances to mirror the symmetry of the functionality. For example, if you can issue the command: “MOVE ROBOT FORWARD THREE PACES” you want the symmetrical function to be evoked this way: “MOVE ROBOT BACKWARD THREE PACES” and not, “THREE PACES BACKWARD FOR ROBOT MOVE.” If you decide to give auditory feedback for the first command that says, “ROBOT MOVING FORWARD THREE PACES” you do not want the reverse command to provide feedback that says, “ROBOT THREE PACES BACKWARD MOVING.” (Oh, by the way, if you cannot provide symmetrical functionality, please do not pretend to do so with a facade of symmetrical looking commands that actually behave asymmetrically!)

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A lack of symmetry (or consistency) in the functionality, command structure, or visual appearance often arises because of a lack of communication within the development team. If different functions of the robot are to be implemented by different people, then it’s important that those various people use an agreed upon style guide or Pattern Language or that they communicate frequently. Of course, this is not the only cause of asymmetry. Even if your team communicates really well, they can’t design an effective gun with an “unkill” function.

There are, of course, various types of symmetry. Bilateral (mirror) symmetry is what the external appearance of our bodies has. There is also translational symmetry, where the same shape is repeated along a line. The string ABCCBA shows bilateral symmetry while ABCABC exhibits translational symmetry. Most human factors people now agree that hot water faucets (usually on the left) and cold water faucets (usually on the right) should both be turned off by turning to the right and turned on by turning to the left (translational symmetry) as opposed to having the faucet on the right turn off to the right and the left faucet turn off to the left. But you will definitely experience both types.

In both music and poetry, at least in the culture I am most familiar with, translational symmetry is more common than mirror symmetry. It does sometimes happen that musical composers experiment with playing a tune backwards or even with the staff turned upside down. But this is far less common than repeating a theme or melody. Similarly, a rhyme scheme like ABCABC is much more common than is ABCCBA. {In this notation, ABCABC means that the first line rhymes with the fourth line, the second line rhymes with the fifth line and the third line rhymes with the sixth line.}

black and brown millipede on a green and brown branch

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In biology, we also find translational symmetry or something close to it. The segments of a tape worm, the segments of the body of a millipede or centipede, the small legs of a lobster, and even our own vertebrae and ribs show translational symmetry. In social structures as well, we find both mirror symmetry and translational symmetry. For instance, the Golden Rule says to do unto others as you would have them do unto you. In addition, as it happens, if we are nicer to other people, then, generally speaking, they are also nicer to us. This is not always true, however. Some people simply take advantage and view all of life as a zero sum game. Whatever you gain, they lose and vice versa. This is a very limited, inaccurate, and self-defeating attitude in most social situations. Most social situations, are, of course, much more complicated. Generally speaking, there are a great many situations that both you and your “opponent” or even your “enemy” would agree are good and a great many others that both of you would agree are bad. If you are playing tennis or golf outdoors, for instance, you may be fiercely competitive but both of you would probably find a game that brings out the best play is better for both of you. Both of you would probably also agree that being rained out is a bad outcome.

men in black and red cade hats and military uniform

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In the military and in many industrial settings, there is a great deal of translational symmetry. The “ideal” set-up is to have many groups at each of many levels and each group is meant to be as similar as possible to all the other groups at that level. The marching that military groups learn is both symbolic of this translational symmetry and practice in behaving as a unit composed of identical parts. Whether or not this is the best way to run a military is debatable. To me, it’s undeniable that this management style has been imported into a huge number of organizations where it is definitely not the best way to organize.

The last thing to note is that symmetry also pops up in design. There is often a whole series of information exchanges from people who have quite different areas of expertise. These exchanges can result in mutual learning, solutions that work, and often patents, and occasionally, some really cool, transcendent, game-changing designs. In my experience, it is much better to have a design process based on symmetrical relationships founded in mutual respect than to have a design process based on having someone in a hierarchical power relationship make decisions that are to be implemented by an identical set of “underlings.”

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The Takeaway

Symmetry is everywhere. There are many forms. If you start looking for symmetry, you will find examples in nature, in mathematics, poetry, art, music, machine design, the military and even in design problems and design processes. Thinking quite consciously about the types of symmetry that exist in a problem space and what could or should exist in that problem space, can lead to novel solutions.

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Author Page on Amazon.

Fraught Framing: The Presumed Being-ness of State-ness

17 Monday Dec 2018

Posted by petersironwood in America, creativity, psychology, Uncategorized

≈ 1 Comment

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#therapy, framing, fun, HCI, human factors, innovation, learning, politics, problem formulation, sports, UX

Fraught Framing: The Presumed Being-ness of State-ness

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As I understand it, in Spanish and Portuguese, for example, there is a linguistic distinction between current state of being and habitual state of being that is signaled by the use of different verbs. In English, we say, “That is an angry dog” to mean “That is a dog who is generally and habitually angry” and also to mean, “That dog is in an angry mood right now.”

woman and man wearing brown jackets standing near tree

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But, regardless of what native languages we write and speak, we humans often make statements about something and treat something according to the unstated and untenable presupposition that what is true about the current state of affairs is true about eternity.

This habit of mind, reinforced by language, is often incredibly useful. For instance, near me right now are a table, and on the table, among other things are a coffee cup filled with coffee and a checkbook. The table is mainly composed of wood and marble. For many purposes, this is an adequate description. Of course, none of these so-called objects were always in their current state. Once, the wood was part of a tree. And, before that, the material in the tree was mainly rainwater and dirt. It was transformed into a tree by a mere seed of information using energy from the sun.

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Meanwhile, even the marble portion of the table was not always in its current state. At one point, in the distant past, this marble was limestone. The limestone was transformed by temperature and pressure into marble. Before the limestone was limestone it was mainly the shells of tiny animals living in the ocean. If we trace the table back far enough we will come to the “Big Bang” that started the universe as we know it. The transformation of the table from one sort of thing into another did not end when it became a table nor when I bought the table. Some day, it will no longer be a table. Eventually, the material nature of the wood, and eventually even the marble will be different. The checkbook and the coffee cup will likely cease to be a checkbook and a coffee cup long before that.

For the purpose of drinking my coffee, it is just fine to think of this cup as being a cup. It holds my coffee and keeps it somewhat warm. The table works just fine as a place to hold the coffee cup. I don’t need to think more deeply about the lifecycle of the table or the cup or the checkbook.

Usually.

But sometimes, it is useful to deconstruct these categories. A fairly common test of creativity, for example, is to think of alternative uses. What could this table be used for besides a table? It is a pretty sturdy looking table, so I would say it could be used as a seat by one or two people pretty safely. It could be used as a deadly if awkward weapon. The bracing cross-piece could be detached and used as less awkward weapon. It could be used as a barrier. The wood part could be used as firewood. The thing that I habitually use as a coffee cup could be used as a container for many types of liquids or solids and even, with the help of the checkbook, could be used to hold gasses though not very effectively. The checkbook can be used as a weapon against a mosquito. In a very different way, the checkbook could be used as a weapon against a person or even as a weapon against a nation; e.g., by writing checks to steal an election.

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While all of these “objects” have histories, they also have futures. Generally speaking, the people I know give little thought to the future of the objects that they interact with. But slowly, and likely too slowly, this is gradually changing. We often now recycle or reuse objects. Thinking about the future of an object also influences my choices about what I buy. This kind of thinking is particularly important to when it comes to radioactive material which can pose very long term hazards or it can be stolen and used to cause fairly short term mayhem. Collectively, the plastic that we use gets discarded and then, does not vanish into nothingness. It finds its way into the air we breathe and the water we drink. Now that the population of the earth is 7 billion, we can no longer afford to ignore how the objects we interact with were created and we cannot afford to ignore what becomes of them. What we call a “table” or a “cup” or a “checkbook” is really only a “table for now”, “a cup for now” and a “checkbook for now.”

The fluidity of things also applies to human beings. It should be pretty obvious to most adults that someone we call “a toddler” or a “teen-ager” is not in that category forever. Most people evolve over time both physically and mentally. The change from “toddler” to “teen-ager” takes many years. Physically, the person usually seems stable from one hour to the next (even physical stability is an illusion; we create over 200 billion new cells a day!). Socially and psychologically, however, we are unstable even at a macro level. A sixteen year old, for instance, may act very much like a mature adult in hundreds of different circumstances. Yet, if they are overly influenced by “friends” or under the influence of alcohol for the first time, their behavioral self-control may easily revert to that more like a ten year old or even a two year old.

girls on white red jersey playing hand game

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We Limit Others by our Categories

It is human and common but not useful to observe a small slice of someone else’s behavior and thereby make inferences about their habitual behavior. Even if we know about someone’s habitual behavior, it doesn’t mean that they always behave that way and it doesn’t mean that they can’t change over time. When we say, “Oh, don’t pick Chuck for the baseball team; he’s such a spaz” or “No, I’m sure Sally wouldn’t like to join us; she’s really a loner” or “You can’t count on Jim; he never follows through” we are almost certainly over-generalizing. Perhaps Chuck never learned baseball as a kid and he simply needs to learn and practice basic skills. Maybe Sally has no real friends precisely because no-one asks her to join them because everyone thinks she’s a loner because she’s always alone – because no-one ever asks her to join them. Or maybe her idea of a good time is hiking and she’d be happy to do that, but has no interest in going clubbing and getting drunk every day. Maybe Jim is completely overworked and/or needs to learn better time management skills.

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“How many psychologists does it take to change a light bulb? Only one, but the light bulb has to want to change.”

People may be changed by circumstances but therapy often works too. As the joke implies, it won’t work very well if the main reason the “light bulb” goes to the therapist is to feel better rather than to get better, it’s an opportunity lost. Others who frequently interact with the “light bulb” often hold views and use names that subvert therapy. For example, a person who is never assertive and wants to change that may find that when they do so, their family and colleagues at work, who have been taking advantage of them for their own purposes may say things like this: “Oh, you used to be so nice!” {Translation: I used to be able to manipulate you for my own purposes so much more easily}.

We Limit Ourselves by our Categories

While we unwittingly define others into boxes that may serve to limit what they can do, we humans are generally “equal opportunity destroyers” and also limit our own potential through self-talk as well. I like to play golf and have therefore asked many people over the course of my life, “Do you play golf?”

Take a guess what response I have heard at least two dozen times. “Golf? Oh, no. I tried that a couple times. I’m no good.”

silhouette of man playing golf during sunset

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After picking myself up off the floor, I try to explain as nicely and politely as possible that if you’ve literally tried it a couple times, you have no idea whether you would be any good at it. You very likely have no idea whether you would like it either. The same goes for painting, writing poetry, playing video games, eating healthy food, exercising regularly, and so on. In each case, your initial level of skill and your initial level of enjoyment are very poor predictors of the long term. It is most often, not our ability, but our self-definitional boundaries and self-talk that limits us.

Exercises for Flexibility.

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Life is complicated and complex so I understand that many folks may be reluctant to expand the scope of what they and others are capable of. But if you do want to become more flexible in your behavioral repertoire, there are several things you can do.

First, you can become aware of your statements about yourself and others. When you find yourself thinking, “Jim never follows through,” try to restate that in terms of empirical evidence. It could be: “Well, once I asked Jim to help plan the office party and he never showed up for the first meeting. Another time, he said he would help teach my daughter how to parallel park, but nothing ever came of it.” You might immediately see that you have precious little evidence to back up your claim that Jim never follows through. You might also ask yourself whether you ever asked Jim about these incidents. There may be hundreds of legitimate reasons that he didn’t “follow through.” His name might have been left off the distribution list for the party planning meeting. And so on. Generating these alternatives is explored in more detail in “The Iroquois Rule of Six” which basically says before acting on an explanation that is inferred you should generate five alternative explanations.

Second, you can read fiction, watch movies, attend stage plays, do some amateur theater or even answer a questionnaire from someone else’s perspective. In working with Heather Desurvire at NYNEX, on a usability evaluation of a prototype, we did a variation on heuristic evaluation in which we had people look for issues and offer suggestions from a variety of different perspectives; e.g., a behaviorist, a cognitive psychologist, a worried mother, a physical therapist and so on. With the total amount of time controlled for, people found more issues and offered more suggestions when they looked at the application from the perspectives of many people.

Third, and my current favorite, is “Attitude Dancing.” I’m not sure this is what Carly Simon and Jacob Brackman meant by their song title, but when I turn on music while I am cooking or cleaning, I spent part of my dancing time dancing as though I were in a completely different mood or even as though I were a completely different person.

Give it a try!

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Author Page on Amazon.

Desurvire, H. and Thomas, J.C. Enhancing the Performance of Interface Evaluators Using Non-Empirical Usability Methods. In the Proceedings of the Human Factors Society 37th Annual Meeting, October, l993

Imagination

14 Friday Dec 2018

Posted by petersironwood in America, creativity, management, psychology, Uncategorized

≈ 1 Comment

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creativity, Design, fun, HCI, human factors, imagination, innovation, neurosis, sports, testing, truth, UX

Imagination.

It seems odd to bother to remind people that imagination is a tool of thought. I have four kids and twelve grandkids and they all use their imaginations. I also worked as a camp counselor, Y leader, child care worker in a psychiatric hospital, and a sixth grade science teacher. Kids use their imaginations! In many cases, they do this for “fun” but they also are constantly using their imagination to do creative problem solving.

When I did therapy with adults however, I found that many had convinced themselves that they had no imagination. This is rather sad as well as being completely inaccurate. Furthermore, in the very ways that such adults exhibited neurotic symptoms, they were using their imaginations. But instead of using their imagination to further their enjoyment or to solve problems creatively, they mainly seemed to use their imaginations for one main purpose: to make themselves miserable.

For example, few of us enjoy being stuck in stop and go traffic. As it turns out, you can actually impact the traffic flow around you by driving differently. You can read about how in this link, but you can come to much the same conclusion by using your imagination to empathize with the drivers around you. Instead, the neurotic train of thought goes something like this: “WHY oh WHY are all these people out on the road?! MOVE! Oh, crap, I am going to be late. My boss is going to scream at me. Probably fire me. CRAP! MOVE! I’m going to be late. I’m getting fired. Damn! It’s not my fault. My boss doesn’t care. He hates people who are late. I should have left earlier. Where will I get another job at my age? I’m sunk. Once I lose my job, my spouse will leave me too. Crap. He won’t write a good letter of recommendation. Should I get off the highway and take surface roads? That might make me later. Damn! I’m sunk. Life sucks!”

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That train of thought certainly uses imagination!

But in all the wrong ways! That person is not using imagination to enjoy the moment, but using imagination to quite literally make themselves miserable. And it isn’t just the commuter. Plenty of people use their imagination to “awfulize” about situations. They think of the worst possible outcome and then imagine that that worst possible outcome is bound to happen.

Instead, if you are in a situation that you can’t change, you could use your imagination to have some fun. So you’re stuck in traffic. There are literally a million things you could do instead of writing a tragic screenplay in your mind’s eye. I won’t list all million, but here are a few. You could design a better transportation system. You could construct a joke to put your boss in a better mood. You could turn on the radio or listen to a podcast or a book on tape. You could look at the scenery. You could make up a rather salacious spy thriller about the people around you who are also stuck in traffic. And so on.

So too, in solving problems….hold on… someone’s at the door. I’ll be right back.

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Well, that was weird! Two of the characters from my last blog series came to the door! They wanted me to hurry up and finish this series on tools of thought so they can come back to life. I had to explain to them that my translator is on vacation and that there’s nothing else to write until more of the myths can be decoded. Right now, there is growing interest in recent, though mythological, archeological digs that will give us further clues about the Veritas. My own command of the mythical Veritas language is extremely rudimentary and I’m not even absolutely sure I understood correctly what they were asking. But I am sure it was She-of-Many-Paths and Shadow-Walker. It was definitely them, more or less as I pictured them, but taller, and more ripped than I had imagined. It’s also clear that the two of them are more than friends. Anyway, they seem to be of the opinion that I need to write their myths so that we real humans can avoid making the same errors that people made in their mythical universe. I don’t quite see how that’s possible, but I will use my imagination to try to understand how it might be done. I hope they don’t bother my neighbors.

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Meanwhile, back to the catalog of thinking tools in general and to the use of imagination in particular. Under some circumstances, of course, it is a useful skill to use imagination to think of what can go wrong. I use imagination in this vein for example, when asked to evaluate something from a user perspective. I try to imagine how various icons, words, transitions and so on can be problematic for users. Even though I am pretty good at that, when users are actually observed in real life, they still manage to demonstrate problems that neither I nor anyone else on the design team had thought of!

Even in UX work, it is also important to use your imagination to think of additional opportunities. “You know, we’ve been thinking about this calendar application as a passive recipient of the user’s information. But some users might also like seeing a weekly summary of their activity in different categories.” Or, you might think, “Suppose we tie the calendar in with the message system. The system knows where the user is; we could send a reminder when it’s time for them to leave for an appointment.” Or, you might think, “In some places the time to drive somewhere depends on traffic and weather. We could tie this calendar and reminder in with the map and weather apps to give better estimates of when to send a reminder.” Such musings could result in a better product. Of course, timing is important as well. Your colleagues will tend to appreciate these thoughts a lot more if you are not currently in beta test but instead at the conceptual design phase!

Even knowing that, your imagination might be more likely to kick in later in the project because the application seems more real. You can imagine the reactions of your colleagues and frame your response this way, “Trying this app makes me realize that we can make a number of enhancements in version 2.0, 3.0 etc. I’m going to start this shared file of potential additions, changes, and enhancements that we can all contribute to. We should take a look at this when we are doing 2.0 brainstorming.”

More generally, there are many possible triggers for using your imagination and you may find that some kinds of triggers are more fun for you. For example, you might read fiction and you enjoy following along with the story being presented. This requires a lot of imagination work.

You can also start with a goal or even desire and work outward from this internal state to imagine ways you might accomplish your goal or fulfill your desire. But you can also work inward. You look at what is before you; e.g., a computer screen like the one I am looking at now and ask yourself how it might be different in the future.

Such musings can follow a thread based on the characteristics. The screen is flat, for instance. What if it were curved, or dynamically reconfigurable, or foldable or moldable? What if I could shrink the actual screen depending on circumstances? You can inject your screen (and possibly yourself) into a different and unusual situation. What if I had the screen available on the tennis court? Well, I could project things on my glasses; e.g., as I walk over to retrieve a ball, I could be reminded of how to hit a kick serve. What if I had special lenses that I could pass over any word or icon on the screen? One might give me the history of any given word. Another might give me the definition. Another might give me alternatives that are more esoteric or are easier to understand; more general or more specific; more positive or negative in tone. Another tool might enable you to select a sentence, a paragraph or an entire article and ask, “Who has written similar things before?” Even without AI, a purely statistical approach might lead you find out about people with similar interests.

Another way to practice using your imagination is to pose a question or see how two things are or could be related. On the table beside me are a number of objects: a set of keys, an iPhone, a coffee cup, a checkbook, two of the books I wrote, copies of some papers that I reviewed for a recent conference, a quarter, some business cards. How could these be combined? It doesn’t necessarily matter at this point that the combination is feasible. Let’s just try it.

Putting together a set of keys and an iPhone suggests to me having an app wherein I could photograph all my keys and then, if I lost any (or all!) of the keys, I could have one 3-D printed at a local store or my home 3-D printer. I can also imagine that for another layer of security (at a cost of inconvenience) my iPhone would not turn on unless I took a picture of a particular physical key. A coffee cup and a checkbook seem to belong to different worlds indeed, but that only makes it more of a fun challenge! I like coffee. I don’t particularly like writing bills. On the day before the bills are due, perhaps the coffee machine might not deliver coffee till I wrote the bills. This strikes me as too controlling. For me, it might work better to have an ironic message delivered on the coffee cup such as, “Have a nice day! And save the insane interest rates for paying $25 a day late by paying your bill on time! Or, make some rich banker even richer. The choice is yours!” This approach would not be everyone’s “cup of tea” but that doesn’t matter. The point is to reawaken your imagination.

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What about a quarter and two books I wrote? I could offer a 25 cent rebate. I could write about about the history of the quarter. I could mail people books with a quarter inside. I could make an advertisement about The Winning Weekend Warrior that is aimed at tennis players and suggest that every time they lose a set, they put a quarter in a piggy bank. When they get to 40 quarters they can buy my book. I can design strategy and tactics sheets for different sports that are sold separately. The reader/user places quarters on the sheet to reinforce strategy. In tennis, for instance, such a sheet might be static and the user could use four quarters for the positions of the four players on the court. They could be asked to select smart shots, given the positions. Similarly, I might have 4 or even 18 sheets for golf and on these sheets I would show the slope and terrain and ask people to put the quarter on for their target. Eventually, I imagine, there is a way to capture the data of how the player actually hits the golf ball on real courses and that could be incorporated into what the best shot is for that particular player. This data could also be used as input to computer golf games so that a player might use the game to help select better clubs and targets. We are no longer necessarily talking about my book or about quarters. That doesn’t matter! All that really matters is that I have used these arbitrary objects to trigger my imagination. And you can do the same!

I’m done. Hold on. Doorbell. II see that it’s the Veritas power couple again. I’m inviting them in for coffee. I wonder if they’ve ever had coffee before….

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Choose one of these four books for everyone on your gift list!

Metaphors We Live and Die By: Part 2

13 Thursday Dec 2018

Posted by petersironwood in America, health, management, psychology, Uncategorized

≈ 1 Comment

Tags

cancer, disease, HCI, human factors, innovation, politics, testing, UX, war

Metaphors We Live and Die By: Part 2

men holding rifle while walking through smoke grenade

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Today, I want to delve further into the topic of metaphors that we often unconsciously adopt. In particular, I want to look at a common metaphor in four areas: disease, business, politics, and and the role of UX in the entire cycle of product development.

Although I am fascinated by other cultures, my experience is overwhelmingly USA-centric. I am aware that all of the four areas I touch on may be quite different in other countries and cultures. If readers have examples of how different metaphors are used in their culture, I would love to hear about it.

Disease is an Enemy to be Destroyed.

In most cases, American doctors view disease as an enemy to be destroyed. In fact, this metaphor is so pervasive that American readers are likely puzzled that I used the verb “view” rather than “is” in the previous sentence. In American culture, there is also a strong thread of another metaphor about disease: “Disease is a punishment.” This latter metaphor is behind such statements as, “Oh, they had a heart attack! Oh, my! Were they overweight? Did they smoke?” Perhaps I will consider this more fully another time, but for now, I want to examine the view that disease is an enemy to be destroyed.

It seems as though it is an apt metaphor. After all, aren’t many diseases caused by other organisms invading our bodies and doing harm? There are many examples: bacteria (Lyme Disease, pneumonia, ulcers, TB, syphilis), viruses (herpes, Chicken Pox, flu, common cold), protozoa (malaria, toxoplasmosis) or even larger organisms (trichinosis, tapeworms, hookworm).

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When it comes to considering causality, our thoughts usually travel along linear chains of causes. So, we may admit that while Lyme disease is “caused by” Borrelia bacteria, the “deer tick” that spreads the disease is also partly at fault. Similarly, although malaria is caused by a protozoa, the most effective prevention is to reduce the mosquito population or to use netting to keep the mosquitos from biting people. Similarly, you might try to prevent Lyme disease by wearing light clothing, using spray to keep the ticks off, checking for ticks after being in tick infested areas, etc. So, even in common practice, we realize that saying that the little organism causes the disease is an over-simplification.

Once one “gets” a disease, however, the most commonly invoked metaphor is war. We know what the enemy is and we must destroy it! I grant you that is one approach that can be very effective, but consider this. The “human” body contains approximately as many bacterial cells as human cells. What you think of as your “human” body is only half human! It is half bacteria! Furthermore, since we all have trillions of bacteria in us when we are well, the picture of treating bacteria as an enemy to be destroyed is at best an over-simplification. In fact, more recently, medical science seems to indicate that under-exposure to bacteria in childhood can make you more not less susceptible to disease. If you use anti-antibiotics to “destroy” the “enemy” bacteria in your body, many of the “good” bacteria necessary for digestion are also destroyed. This sometimes, though rarely, requires exotic treatment to return to health.

In cancer, both doctors and the general public mainly think of the cancer cells as “enemies” who must be destroyed! And yet, it seems that people may often have mutations that could lead to cancer but don’t. There are even very rare cases of spontaneous cures of cancer. What are some alternatives to thinking of cancer as an “enemy” that must be destroyed?

Clearly, I don’t know of a definite answer or you would have already heard about it on the news! But let’s consider a couple alternatives. First, instead of thinking you have to “destroy” this enemy, imagine you thought of cancer cells as confused. People get confused all the time. Sometimes, we put them in jail. Sometimes we put them in mental hospitals. Sometimes, we simply teach them what they need to know. Sometimes, we do end up killing them. But it is not our approach to kill someone just because they make a mistake. So, we might seek a way to “re-educate” cancer cells so that they “realize” that they are part of something even larger and more wonderful – the human body! How would one go about this? Using the metaphor of a confused person, we would have to understand just why they were acting confused. Then we would have to provide situations so that they could learn (or re-learn) what they needed to know in order to become a productive member of “society.” We could “remind” a liver cell that, after all, they were born to be a liver cell and they’re potentially quite good at that. We could think of cancer as cells that are misinformed or have amnesia about their true nature.

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We might also think along a different line. We could try to discover the best possible environment for these cancer cells to thrive – and then offer it to them somewhere else. For example, perhaps they really prefer an extremely acidic environment. Say you have a skin cancer on the back of your hand that thrives in a really acidic environment. You provide a gradient of acidity next to the tumor and encourage all those acid-seeking cancer cells to migrate into a really acid tube that is next to the tumor. The farther away it gets from you, the more acidic the environment.

You might also think of cancer cells as being rebellious. For whatever reason, they “feel” as though they are not experiencing enough of the “good life” being part of your body so they “take matters into their own hands” and begin leading a rebellion of cells out to steal the food supply and multiply in an unrestrained fashion. A solution might be to “convince” them that they are better off retaining their initial function rather than becoming a lawless gang of cells. I am not sure what the best metaphor for thinking about infection or cancer is, but surely it is worth imagining others rather than sticking to just one based on war as a metaphor.

Business is a Sport.

I treat this at greater length in The Winning Weekend Warrior, but the basic idea is simple. Yes, there are many strategies and tactics from sports that apply to business. But there is at least one crucial difference. Sports are designed to be difficult. They typically require skill and training if you are to do well. The parameters of the sport are fixed at any given time though they will vary somewhat over time. In golf, for instance, the hole is small and the distances are great. Though the rules of golf are complex, there is one over-arching principle. If it would help you to do something, doing that thing is penalized!

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If golf were a business, many CEO’s would nonetheless approach it as a sport. They would try to hire the “best people” – that is, people with a proven track record of good golfing. They would then proceed to offer incentives for people to do even better. If people shot a high score repeatedly, they would be fired. Eventually, such a CEO might get good results by having skilled people who are well motivated and well trained. But why? If putting a golf ball in the hole is what gained you profit, simply shorten the fairways, widen the hole, and eliminate the hazards! Of course, as a sport this would make golf no challenge and no fun. Everyone could win. But having everyone win is exactly what you should do to maximize profit. Yet many in management are so taken with the “business is a sport” metaphor that they do not change the situation. Some do “change he game” and with spectacular results. Google and Amazon come to mind.

Politics is War.

If you belong to a political party and believe the “other” party or parties are enemies to be destroyed, you are failing to understand the dialectic value that parties with different views can bring to complex situations. Life is a balanced dance between strict replication and structure on the one hand, and variation, exploration, and diversity on the other hand. A species who had no replication of structure from one generation to the next would die off. But so too would a species that had no variation because the slightest change in environment would also cause the species to die off. So it is with human cultures. If every generation had to start from scratch in determining what was edible, how to get along, how to avoid predators and so on, humans would have died out long ago. On the other hand, if a culture were completely unable to evolve and change, they would also die out. Typically, “conservative” parties want to keep things the same for longer and “liberal” parties want to change things more quickly. There is no obvious answer here. But what is vital is that members of each party see that there is value in the debate; in the dialogue; in the dialectic.

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The other party is not an enemy; it is the balance so that you can do what you do best. If you are predisposed toward exploration, science, new experiences, and so on, great! On the other hand, if you are more predisposed toward tradition and loyalty and repetition, great! If you did not have the people of the opposite predisposition, you would have to incorporate all that within yourself. Conservatives are what allows liberals to be liberal. And liberals are what allows conservatives to be conservatives. A huge problem arises, as it has recently in American politics, when one party decides they are just “right” all on their own and “victory” is worth lying, cheating, and stealing to get it. This is not unique to contemporary America of course. History is littered with administrations who were so convinced that they were “right” that they wanted to destroy all opposition. It has always ended badly. Politics is not war. (Though the failure of politics often leads to war.)

UX is All that Matters vs. UX Does Not Matter. Development is war!

As you might guess, neither of these extreme positions is useful. Price matters. Time to market matters. Marketing matters. Having good sales people matters. Having excellent service matters. Having a good user experience matters. It all matters. Depending on the situation, various factors matter relatively more or less.

(Original artwork by Pierce Morgan)

As in the case of political ideologies, it is just fine for UX folks to push for the resources to understand users more deeply; to test interaction paradigms more thoroughly; to collect and observe from more and more users under a wider variety of circumstances. Similarly, while you are pushing for all that and doing your best to argue your case, remember that the other people who are pushing for tighter deadlines, and more superficial testing are not evil; they simply have different perspectives, payoffs, and responsibilities. Naturally, I hope the developers and financial people do not view UX folks as simply “roadblocks” to getting the product out quickly and cheaply either.

The first half of 2018, I tried to catalog many of the “best practices” in collaboration and teamwork. You might find some of these useful if you are embroiled in “UX wars.” You and your colleagues from other disciplines might also find it useful to consider that it is worth taking the time to affirm your common purpose and common ground. You are meant to work together. Development is not war!

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Buggy Whips to Fingertips

26 Thursday Jul 2018

Posted by petersironwood in America, management, psychology, Uncategorized

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computers, Democracy, Dictatorship, experiment, Feedback, HCI, human factors, Human-Computer Interaction, politics, programming, UX

three women and two men watching on laptop computer on table

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My degrees are in psychology. I have also been fascinated by computers. One main reason I went into HCI/UX/Human Factors was that I saw computers as devices that would amplify collective human intelligence. Thereby, with a mixture of people and computers, we would be able to solve such complex problems as world hunger, overpopulation, disease, global climate change, wars, and so on. I definitely saw myself as most interested in the people side though I thought comparing and contrasting computers and people shed new light on the people side. If you only have one type of computational mechanism; viz., us, then it’s hard to know how much of what happens in trying to solve a problem is because of our common human heritage and hardware and how much is intrinsic to the problem.

This interest in the novel light that computing could shine on human intellect was what initially drew me to computers, but I later saw them as fascinating in their own right as well as being extremely important tools for a psychologist. For example, I used a PDP-8 to run experiments on the psychology of aging and to analyze the data. Only when I joined IBM did I begin to change my focus from how computers could be useful tools for psychologists, but how psychology could be useful tools for improving computers (or at least the actual performance of the computer in doing useful work when used by a person).

Although I took a number of programming courses, I only ever became an amateur programmer. My main method for programming some task was to think about how I would do it and then step by step, make the computer do it. This process has many limitations, a few of which are obvious even to me. For example, when doing my dissertation work, I had the computer register the time whenever any one of five subjects made a response. While sitting in the computer room (while the subjects were in their booths), I was sitting and reading something while the disk kept buzzing next to me: Bz-b-bz-bz. Bz-b-bz-bz. Bz-b-bz-bz.

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I had used my “What would John do?” method of programming. If I saw a long number and had to go write it down, I would want to do it immediately, and then be ready for the next number. But this was insane for the computer! The computer could “remember” hundreds of these numbers and then write them out to the disk en masse. Anyone who had gone through even an introductory programming course would approach the problem differently than I had — at least until the computer used its disk buzzing to wake me up to its modus operandi which are really quite different from mine.

Like every other human, I make mistakes all the time in every sort of endeavor. For example, I like to play tennis and I like to hit a serve that’s hard to return. So, I am typically trying to serve to a particular spot. I’m not dead on accurate. I might miss long or wide by a couple inches or hit the net. But I will not (or at least haven’t yet) turned around and sailed the ball out of the court behind me. Nor have I ever yet struck the ball straight down at my feet. Nor, have I tossed the ball sideways into the screen and then swung anyway (!), and accidentally let go and flung the racquet across the net. But if you have ever programmed a computer, you know any of these behaviors might be possible based on the slightest error you can imagine.

It is ironic because most people think people are unreliable while computer are reliable. Well, it’s not that simple. Most people are pretty reliable most of the time and especially when they are acting within their bailiwick. Yes, they slip up and make mistakes but they are usually (not always) both understandable and fixable. A computer can do anything. The hardware is typically reliable but can still fail. Much more likely is that there are differences between what the programmer thought she or he was telling the computer and what the programmer actually told it to do. But wait! There’s more! Even more likely is that the intent of the programmer solves only a small part of the overall problem, solves the wrong problem, or actually makes the situation worse. That is not — or at least not solely — the fault of the programmer (more likely, the fault of an entire bureaucratic process).

This kind of weird and catastrophic error appeared in the program that ran my dissertation experiment at Michigan. Worse, it was a different weird and catastrophic error that appeared every time I ran the program! Often, the program would run correctly for five minutes or fifty minutes and then – BANG – unrecoverable error.

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The program was in FORTRAN 2. Someone had added some useful macro functions for doing experiments. For instance, there were a number of initializations for the displays. We had five displays so these functions all had the form FUNCTION1(2) which applied the function1 to the second display. To make it even more convenient, if you wanted to do the same thing to all five displays (which was always the case for me), you could simply pass it the argument (7) and the macro code would apply it to all five displays. So, I had a list of about 5-6 commands of that form: Function1(7), Function2(7), Function3(7) etc. Having initialized the displays, the next thing on my agenda was to initialize the array that held the timing information. Since I wanted to do this for all five of the arrays, it seemed as easy as rolling off a cliff to use the (7) convention and thereby apply it to all five reaction time arrays. In more modern version of FORTRAN, they won’t allow you to do that (you will get a compile time error). But back when Joy to the World by Three Dog Night topped the charts, there was no error message at compile time. Secretly, of course, you just know that compiler was snickering as it thought: “Oh, you want to write some time stamp into the seventh element of a five element array? Fine. The customer is always right. Be my guest. Good luck with that.” This is the computer trying to “serve” and instead smashing the ball directly into the ground.

Yet, keep in mind that there are some (not all) very rich and powerful people out there who sincerely wish that “people” could just be more like computers and do precisely as they’re told, always, and without question. And, when I say there are “people” they want to control like a computer, I mean you. That is exactly what they want. For you to do what they insist you do. They are about to get away with it – and if they do, there will be no Joy to the World – not for a very long time. Because if someone else lays out all the choices for you, you are not living your life at all. You are a tool in their life.

It isn’t even really a good system for them. Willing collaborations yield insights and creativity and productivity. It is precisely what has taken us from buggy whips to fingertips in an astoundingly short time. Society and technology and learning progressed at a snail’s pace in Medieval times. I don’t mean those really speedy thoroughbred racing snails either; I’m referring to the garden variety garden snail. A politician who has competition will want to show some sort of real progress. But a dictator? Maybe if they are particularly partial to scientific advancement or the fine arts, they might throw a few dollars that way. And some have. But many have not. What they typically put time, energy and thought into is war and the weapons of war.

grayscale photo of explosion on the beach

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Now, instead of, or at least in addition to, having computers help provide a coordinating infrastructure of knowledge so that human beings can collaborate and solve more interesting problems as I had initially hoped a half century ago, computers and social media are being used to trick people into denying the validity of their own experience and existence. How do we debug this situation before it’s too late? I sometimes think that part of the problem is that we have tried to jam seven elements of serious social and technological change into an array that can only hold five elements. But maybe that’s irrelevant. What is relevant is that people are at their best when they are free to be people and at their worst when they are made to pretend that they are machines.

Study Slain by Swamp Monster!

19 Thursday Jul 2018

Posted by petersironwood in America, management, psychology, Uncategorized

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Business, Design, experiment, HCI, human factors, innovation, politics, science, Study, usability, UX

Study Slain by Swamp Monster!

I’m trying a new format for blog posts.

For those of you in a hurry, to get to the “bottom line” of this post, you can skip the story and go right to the bold-faced “lesson” at the end. I’d really you rather read the whole thing of course, but I know some readers are harried and hurried. So, if that describes you right now, feel free.

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In the early 1980’s, researchers at the IBM Watson Research Center invented a new kind of system. Originally, this was called the “Speech Filing System.” It was initially designed to allow so-called “office principals” (sales people, managers, executives, engineers, etc.) to dictate letters and memos which could then be typed up by the pool of typists. Instead of requiring each “office principal” to have (or borrow) a dedicated piece of dictation equipment, they could accomplish this dictation from any touch tone phone. While this offered some savings in cost and convenience in the office, it was even more wonderful on the road. People did not have to take their dictation equipment with them on their travels. They could use any touch-tone phone.

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The system was invented largely by tech-savvy psychologists (including Stephen Boies, John Gould, John Richards, & Jim Schoonard). When they observed people actually using the system, they discovered that the trial users more often used the ancillary messaging facility than they did the “real” dictation features. So, the system was redesigned and repurposed and then renamed, “The Audio Distribution System.” In some ways, using the “Audio Distribution System” was much like leaving a message on an answering machine. However, there were some crucial differences. Typically, a person calling someone and encountering, instead of a human being, a message asking them to leave another message was somewhat taken aback. Many messages on answering machines went something like this: “Hi. Stephen? Oh, you’re not there. OK. This is John. I was hoping … well, I thought you’d be in. Uh. Let’s see. You know what? Call me back. We need to talk.” And, when Stephen discovered that he had a message, he might listen to it and call back John. “Hi, John. Stephen here… I … oh. OK. A message. Sorry. You just called me. Well, um. I’m not sure what you wanted to talk about so. Call me back when you get a chance.”

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By contrast, when someone called the “Audio Distribution System” they knew ahead of time they’d be interacting with a machine. So, they could compose a reasonable message before calling the system. Hence, the messages tended to be more coherent and useful; e.g., “Hi, Stephen. This is John. If it’s okay with you, I’m taking off this Friday for a long weekend. If you have any issues with that, let me know.” See? Easy and efficient.

A second critical difference was that you could listen to your message and edit it. People didn’t do this so often as you might think, but it was comforting to know that you could in case you really messed up. (For instance, a person might say, “You are fired!” when all along they meant to say, “You are NOT fired.”).

Introducing any new system will have consequences, both intended and unintended. I wanted to see what some of these consequences might be. Corporations, IBM included, like it when they sell lots of product and make lots of money. A related question then was – what is the value of this product to the customer? Why should they want to buy it?

One hypothesis I wanted to test out was that such a system would increase people’s perceived Peace of Mind. After you leave a meaningful message for someone, you can “cross off” that little item off your mental (or written) “to do” list. By using the Audio Distribution System, I thought one of the user benefits would be increased “Peace of Mind” because they would be able to leave a message any time and any place they had access to a touch tone phone. They could save their working memory capacity for “higher level” activities such as design, problem solving, and decision making. We were going to roll out a beta test of the Audio Distribution System at the divisional headquarters for the IBM Office Products Division (OPD), in Franklin Lakes, New Jersey. Not coincidentally, OPD would be the division selling the Audio Distribution System (just as they were now selling dictation equipment). Before the trial commenced, I developed a questionnaire designed to get at how much people felt harried, too busy, coping, etc. The hope was that I could compare the “Peace of Mind” scores of people who did and did not get the Audio Distribution System and perhaps show that those with the system felt more at peace than those without. I could also compare “before and after” for those internal beta customers who had the system.

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Before I was to roll-out and administer the “Peace of Mind” questionnaire to a sample of people at the OPD Franklin Lakes location, guess what happen just two days before the beta roll-out? OPD was re-organized out of existence! The people who worked there would now be looking for another job elsewhere in IBM (or, failing that, just elsewhere period). The beta trial was cancelled. In any case, even if it hadn’t been cancelled, the impact of the re-organization would have completely swamped (in my estimation) the impact of this new tool. Moreover, it struck me as insensitive and slightly even unethical to ask people to fill out a questionnaire about how hassled they were feeling just days after finding out their entire division had been blown up. How would you react if some psychologist from the Research Center showed up asking you to fill out a questionnaire two days after finding out you no longer had a job?

photography of green and red fire works display

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What is the lesson learned here? You have to understand what is going on in the lives of your users over and above the functions and features directly related to your product or service. Of course, there is always a fairly good chance that some of your users will have overwhelming things going on in their lives that will impact their reactions to your product. Generally you won’t know about divorces, deaths in the family, toothaches, etc. But if something is impacting all your users, you’d best be aware of it and act accordingly.

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Speech Filing System

Audio Distribution System – NY Times

Longer explanation of Audio Distribution System

Video of Audio Distribution System’s cousin: “The Olympic Message System”

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In the Brain of the Beholder

17 Tuesday Jul 2018

Posted by petersironwood in America, management, psychology, Uncategorized

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Design, experiment, HCI, human factors, politics, psychology, science, UX

In the Brain of the Beholder.

MikeHurdles

Most people in the related fields of “Human Factors”, “User Experience”, and “Human Computer Interaction” learn how to run experiments. Formal study often largely focuses on experimental design and statistics. Indeed, these are important subjects. In today’s post though, I want to relate three experiences with actually running experiments. Just for fun, let’s go in reverse chronological order.

In graduate school at the University of Michigan Experimental Psychology department, one of my classmates told us about an experiment he had just conducted. Often, we designed experiments in which a strictly timed sequence of stimuli (e.g., printed words, spoken words, visual symbols) were presented and then we measured how long it took the “subject” to respond (e.g., press a lever, say a word). Typically, these stimuli were presented fairly quickly, perhaps 1 every second or at most every 4-5 seconds. This classmate, however, had felt this was too stressful and wanted to make the situation less so for the subjects. So, instead of having the stimuli presented, say, every 4 seconds, my classmate decided to be more humane and make the experiment “self-paced.” In other words, no matter how long the subject took to make a response, the next stimulus would be presented 1 second later. So, how did this “kindness” work out in practice?

A few days later, I heard a scream in the lab down the hall and ran in to see whether everyone was okay. One of my classmate’s first subjects had just literally ran out of the experimental room screaming “I can’t take it any more! I quit!” My classmate was flabbergasted. But eventually, he got the subject to calm down and explain why they had been so upset. The subject had begun by responding carefully to the stimuli. So, perhaps they took ten seconds for the first item, and the new stimulus came up one second later. On the second go, they took perhaps 9.5 seconds and then the next stimulus came up one second later. As time went on, the subject responded more and more quickly so the next stimulus also came up more and more quickly. In the subject’s mind, the experiment was becoming more and more difficult as determined by the experimenter. They had no idea that had they slowed back down to responding once every 10 seconds, they’d only be presented with stimuli at that, much slower speed.

So, here we have one way that these so-called subjects differ from each other. They may not interpret the experiment in the framework in which it is thought of by the experimenter. In this particular case, there was a difference in the attribution of causality, but there are many other possibilities. This is one of many reasons for doing a pilot experiment and talking with the subjects.

The next earlier example took place at Case-Western Reserve. In my senior year, I was married and had a kid so I worked three part time jobs while going to school full-time. One of the jobs was teaching “Space Science” and “Aeronautics” to some sixth graders at the Cleveland Supplementary Educational Center. Another one of the jobs was as a Research Assistant to a Professor in the Psychology Department. We were doing an experiment with kids in an honest-to-God “Skinner Box.” The kids pulled a lever and won nickels. Meanwhile, on a screen in front of them, there appeared a large red circle and then we looked at how much the kid continued to press the lever (without winning any more nickels) when confronted with the same red circle, a smaller red circle, a red ellipse, etc.

SolarSystem

There was a small waiting room next to the Skinner Box and that had a greenboard on it. So, since there was another kid waiting there just twiddling his thumbs, I decided to give him a little mini-lecture on the solar system: sun at the center, planets in order, some of the major moons, etc.

After each kid had finished the experiment, I always asked them what they thought was going on during the experiment. (This was despite the fact that the Professor I was working for was a “strict behaviorist”). When I asked this kid what he thought was going on, he referred back to my lecture about the solar system!

Oops! Just because the lecture and the experiment were two completely unrelated things in my mind didn’t mean they were for the kid! Of course, they seemed related to him! Both involved circles and they both took place at the same rather unique and unusual place: a psychology laboratory.

And this too is worth thinking about. We psychologists and Human Factors people typically report on the design of the experiment and hopefully relate the instructions. We, however, do not typically report on a host of other things that we think of as irrelevant but may impact the subject and influence their behavior. Was the receptionist nice to them or rude? What did their friends say about going to do a psychology experiment or a UX study? When the experimenter explained the experiment and asked whether there were any questions, was that a sincere question? Or, was it just a line delivered in a rather mechanical monotone that encouraged the subject not to say a word?

Of course, the very fact that humans differ so much is why some psychologists prefer to use rats. And, the psychologists (as well as a variety of biologists and medical doctors) don’t just use any old rats. They use rats that are carefully bred to be “lab rats.” They are expected to act in a fairly uniform fashion. And, for the most part, they do.

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I was helping my girlfriend with her intro psych project. We were replicating the Yerkes-Dodson Law. This states that as you increase stress, performance improves, but only to a point. After that, additional stress causes performance to deteriorate (something that software development managers would do well to note). One of the ways I helped was to get some of the rats out of their cages. I would open up the top of the cage, reach around the rat behind their next and pull them out. Not a big deal. All the rats were quite placid and easy to handle. They all acted the same. Then, it was time to get the day’s last rat who was to be placed in the “high stress” condition. I went to the cage and opened it just as I had done for the last dozen rats. But instead of sitting there placidly and twitching it’s nose, this rat raced to the bars of his cage and hung on with both of his little legs and both of his little arms with all his might! Which might was not equal to mine but was rather incredible for such a tiny fellow. Rats sometimes squeak rather like a mouse does. But not this one! This carefully bred clone barked! Loudly! Like a dog. Whether this rat had suffered some previous trauma or was subject to some kind of odd mutation, I cannot say.

But this I can say. Your “users” or “subjects” are not identical to each other. And, while modeling is a very useful exercise, they will never “be” identical to your model. They are always acting and reacting to a reality as beheld by them. And their reality will always be somewhat different from yours. That does not mean, however, that generalizations about people — or rats — are always wrong or that they are never useful.

It does not mean that gravity will not affect people just because they refuse to believe in it. There really is a reality out there. And, that reality can kill rats or people in an eye blink; especially those who actively refuse to see what is happening before their very eyes.

halloween2006006

Who knows? You might be about to be placed in the “High Stress” condition no matter how tightly you hang on to the bars of your cage – or, to your illusions.

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Madison Keys, Francis Scott Key, the “Prevent Defense” and giving away the Keys to the Kingdom.

07 Saturday Jul 2018

Posted by petersironwood in America, family, management, psychology, sports, Uncategorized

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Business, career, HCI, human factors, IBM, life, school, sports, UX

Madison Keys, Francis Scott Key, the “Prevent Defense” and giving away the Keys to the Kingdom.

Madison Keys, for those who don’t know, is an up-and-coming American tennis player. In this Friday’s Wimbledon match, Madison sprinted to an early 4-1 lead. She accomplished this through a combination of ace serves and torrid ground strokes. Then, in an attempt to consolidate, or protect her lead, or play the (in)famous “prevent defense” imported from losing football coaches, she managed to stop hitting through the ball – guiding it carefully instead — into the net or well long or just inches wide.

Please understand that Madison Keys is a wonderful tennis player. And, her “retreat” to being “careful” and playing the “prevent defense” is a common error that many professional and amateur players fall prey to. It should also be pointed out that what appears to be overly conservative play to me, as an outside observer, could easily be due to some other cause such as a slight injury or, even more likely, because her opponent adjusted to Madison’s game. Whether or not she lost because of using the “prevent defense” no-one can say for sure. But I can say with certainty that many people in many sports have lost precisely because they stopped trying to “win” and instead tried to protect their lead by being overly conservative; changing the approach that got them ahead.

Francis Scott Key, of course, wrote the words to the American National Anthem which ends on the phrase, “…the home of the brave.” Of course, every nation has stories of people behaving bravely and the United States of America is no exception. For the American colonies to rebel against the far superior naval and land forces (to say nothing of sheer wealth) of the British Empire certainly qualifies as “brave.”

In my reading of American history, one of our strengths has always been taking risks in doing things in new and different ways. In other words, one of our strengths has been being brave. Until now. Now, we seem in full retreat. We are plunging headlong into the losing “prevent defense” borrowed from American football.

American football can hardly be called a “gentle sport” – the risk of injury is ever present and now we know that even those who manage to escape broken legs and torn ligaments may suffer internal brain damage. But there is still the tendency of many coaches to play the “prevent defense.” In case you’re unfamiliar with American football, here is an illustration of the effect of the “prevent defense” on the score. A team plays a particular way for 3 quarters of the game and is ahead 42-21. If you’re a fan of linear extrapolation, you might expect that the final score might be something like 56-28. But coaches sometimes want to “make sure” they win so they play the “prevent defense” which basically means you let the other team make first down after first down and therefore keep possession of the ball and score, though somewhat slowly. The coach suddenly loses confidence in the method which has worked for 3/4 of the game. It is not at all unusual for the team who employs this “prevent defense” to lose; in this example, perhaps, 42-48. They “let” the other team get one first down after another.

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America has apparently decided, now, to play a “prevent defense.” Rather than being innovative and bold and embrace the challenges of new inventions and international competition, we instead want to “hold on to our lead” and introduce protective tariffs just as we did right before the Great Depression. Rather than accepting immigrants with different foods, customs, dress, languages, and religions — we are now going to “hold on to what we have” and try to prevent any further evolution. In the case of American football, the prevent defense sometimes works. In the case of past civilizations that tried to isolate themselves, it hasn’t and it won’t.

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This is not to say that America (or any other country) should right now have “open borders” and let everyone in for every purpose. Nor should a tennis player hit every shot with all their might. Nor should a football team try the riskiest possible plays at every turn. All systems need to strike a balance among replication of what works, providing defense of what one has and exploring what is new and different. That is what nature does. Every generation “replicates” aspects of the previous generation but every generation must also explore new directions. Life does this through sexual selection, mutation, and cross over.

This balance plays out in career as well. You need to decide for yourself how much and what kinds of risks to take. When I obtained my doctorate in experimental psychology, for example, it would have been relatively un-risky in many ways to get a tenure-track faculty position. Instead, I chose managing a research project on the psychology of aging at Harvard Med School. To be sure, this is far less than the risk that some people take when; e.g., joining “Doctors without borders” or sinking all their life savings (along with all the life savings of their friends and relatives) into a start-up.

At the time, I was married and had three small children. Under these circumstances, I would not have felt comfortable having no guaranteed income. On the other hand, I was quite confident that I could write a grant proposal to continue to get funded by “soft money.” Indeed, I did write such a proposal along with James Fozard and Nancy Waugh who were at once my colleagues, my bosses, and my mentors. Our grant proposal was not funded or rejected but “deferred” and then it was deferred again. At that point, only one month of funding remained before I would be out of a job. I began to look elsewhere. In retrospect, we all realized it would have been much wiser to have a series of overlapping grants so that all of our “funding eggs” were never in one “funding agency’s basket.”

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I began looking for other jobs and had a variety of offers from colleges, universities, and large companies. I chose IBM Research. As it turned out, by the way, our grant proposal was ultimately funded for three years, but we only found out after I had already committed to go to IBM. During this job search, I was struck by something else. My dissertation had been on problem solving but my “post-doc” was in the psychology of aging. So far as I could tell, this didn’t bother any of the interviewers in industry in the slightest. But it really freaked out some people in academia. It became clear that one was “expected” in academia, at least by many, that you would choose a specialty and stick with it. Perhaps, you need not do that during your entire academic career, but anything less than a decade smacked of dilettantism. At least, that was how it felt to me as an interviewee. By contrast, it didn’t bother the people who interviewed me at Ford or GM that I knew nothing more than the average person about cars and had never really thought about the human factors of automobiles.

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The industrial jobs paid more than the academic jobs and that played some part in my decision. The job at GM sounded particularly interesting. I would be “the” experimental psychologist in a small inter-disciplinary group of about ten people who were essentially tasked with trying to predict the future. The “team” included an economist, a mathematician, a social psychologist, and someone who looked for trends in word frequencies in newspapers. The year was 1973 and US auto companies were shocked and surprised to learn that their customers suddenly cared about gas mileage! These companies didn’t want to be shocked and surprised like that again. The assignment reminded me of Isaac Asimov’s fictional character in the Foundation Trilogy — Harry Seldon — who founded “psychohistory.” We had the chance to do it in “real life.” It sounded pretty exciting!

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On the other hand, cars seemed to me to be fundamentally an “old” technology while computers were the wave of the future. It also occurred to me that a group of ten people from quite different disciplines trying to predict the future might sound very cool to me and apparently to the current head of research at GM, but it might seem far more dispensable to the next head of research. The IBM problem that I was to solve was much more fundamental. IBM saw that the difficulty of using computers could be a limiting factor in their future growth. I had had enough experience with people — and with computers — to see this as a genuine and enduring problem for IBM (and other computer companies); not as a problem that was temporary (such as the “oil crisis” appeared to be in the early 70’s).

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There were a number of additional reasons I chose IBM. IBM Research’s population at the time showed far more diverse than that of the auto companies. None of them were very diverse when it came to male/female ratios. At least IBM Research did have people from many different countries working there and it probably helped their case that an IBM Researcher had just been awarded a Nobel Prize. Furthermore, the car company research buildings bored me; they were the typical rectangular prisms that characterize most of corporate America. In other words, they were nothing special. Aero Saarinen however, had designed the IBM Watson Research Lab. It sat like an alien black spaceship ready to launch humanity into a conceptual future. It was set like an onyx jewel atop the jade hills of Westchester.

I had mistakenly thought that because New York City was such a giant metropolis, everything north of “The City” (as locals call it) would be concrete and steel for a hundred miles. But no! Westchester was full of cut granite, rolling hills, public parks of forests marbled with stone walls and cooled by clear blue lakes. My commute turned out to be a twenty minute, trafficless drive through a magical countryside. By contrast, since Detroit car companies at that time held a lot of political power, there was no public transportation to speak of in the area. Everyone who worked at the car company headquarters spent at least an hour in bumper to bumper traffic going to work and another hour in bumper to bumper traffic heading back home. In terms of natural beauty, Warren Michigan just doesn’t compare with Yorktown Heights, NY. Yorktown Heights even smelled better. I came for my interview just as the leaves began painting their autumn rainbow palette. Westchester roads even seemed more creative. They wandered through the land as though illustrative of Brownian motion, while Detroit area roads were as imaginative as graph paper. Northern Westchester county sports many more houses now than it did when I moved there in late 1973, but you can still see the essential difference from these aerial photos.

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Warren-map

The IBM company itself struck me as classy. It wasn’t only the Research Center. Everything about the company stated “first class.” Don’t get me wrong. It wasn’t a trivial decision. After grad school in Ann Arbor, a job in Warren kept me in the neighborhood I was familiar with. A job at Ford or GM meant I could visit my family and friends in northern Ohio much more easily as well as my colleagues, friends and professors at the U of M. The offer from IBM felt to me like an offer from the New York Yankees. Of course, going to a top-notch team also meant more difficult competition from my peers. I was, in effect, setting myself up to go head to head with extremely well-educated and smart people from around the world.

You also need to understand that in 1973, I would be only the fourth Ph.D. psychologist in a building filled with physicists, mathematicians, computer scientists, engineers, and materials scientists. In other words, nearly all the researchers considered themselves to be “hard scientists” who delved in quantitative realms. This did not particularly bother me. At the time, I wanted very much to help evolve psychology to be more quantitative in its approach. And yet, there were some nagging doubts that perhaps I should have picked a less risky job in a psychology department.

The first week at IBM, my manager, John Gould introduced me yet another guy named “John” — a physicist whose office was near mine on aisle 19. This guy had something like 100 patents. A few days later, I overheard one of John’s younger colleagues in the hallway excitedly describing some new findings. Something like the following transpired:

“John! John! You can’t believe it! I just got these results! We’re at 6.2 x 10 ** 15th!”

His older colleague replied, “Really? Are you sure? 6.2 x 10 ** 15th?”

John’s younger colleague, still bubbling with enthusiasm: “Yes! Yes! That’s right. You know. Within three orders of magnitude one way or the other!”

I thought to myself, “three orders of magnitude one way or the other? I can manage that! Even in psychology!” I no longer suffered from “physics envy.” I felt a bit more confident in the correctness of my decision to jump into these waters which were awash with sharp-witted experts in the ‘hard’ sciences. It might be risky, but not absurdly risky.

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Of course, your mileage may differ. You might be quite willing to take a much riskier path or a less risky one. Or, maybe the physical location or how much of a commute is of less interest to you than picking the job that most advances your career or pays the most salary. There’s nothing wrong with those choices. But note what you actually feel. Don’t optimize in a sequence of boxes. That is, you might decide that your career is more important than how long your commute is. Fair enough. But there are limits. Imagine two jobs that are extremely similar and one is most likely a little better for your career but you have to commute two hours each way versus 5 minutes for the one that’s not quite so good for your career. Which one would you pick?

In life beyond tennis and beyond football, one also has to realize that your assessment of risk is not necessarily your actual risk. Many people have chosen “sure” careers or “sure” work at an “old, reliable” company only to discover that the “sure thing” actually turned out to be a big risk. I recall, for example, reading an article in INC., magazine that two “sure fire” small businesses were videotape rental stores and video game arcades. Within a few years of that article, they were almost sure-fire losers. Remember Woolworths? Montgomery Ward?

At the time I joined IBM it was a dominant force in the computer industry. But there are no guarantees — not in career choices, not in tennis strategy, not in football strategy, not in playing the “prevent defense” when it comes to America. The irony of trying too hard to “play it safe” is illustrated this short story about my neighbor from Akron:

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Wilbur’s Story

Wilbur’s dead. Died in Nam. And, the question I keep wanting to ask him is: “Did it help you face the real dangers? All those hours together we played soldier?”

Wilbur’s family moved next door from West Virginia when I was eleven. They were stupendously uneducated. Wilbur was my buddy though. We were rock-fighting the oaks of the forest when he tried to heave a huge toaster-oven sized rock over my head. Endless waiting in the Emergency Room. Stitches. My hair still doesn’t grow straight there. “Friendly fire.”

More often, we used wooden swords to slash our way through the blackberry and wild rose jungle of The Enemy; parry the blows of the wildly swinging grapevines; hide out in the hollow tree; launch the sudden ambush.

We matched strategy wits on the RISK board, on the chess board, plastic soldier set-ups. I always won. Still, Wilbur made me think — more than school ever did.

One day, for some stupid reason, he insisted on fighting me. I punched him once (truly lightly) on the nose. He bled. He fled crying home to mama. Wilbur couldn’t stand the sight of blood.

I guess you got your fill of that in Nam, Wilbur.

After two tours of dangerous jungle combat, he was finally to ship home, safe and sound, tour over — thank God!

He slipped on a bar of soap in the shower and smashed the back of his head on the cement floor.

Wilbur finally answers me across the years and miles: “So much for Danger, buddy,” he laughs, “Go for it!”

Thanks, Wilbur.

Thanks.

—————————————-

And, no, I will not be giving away the keys to the kingdom. Your days of fighting for freedom may be over. Mine have barely begun.

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Support Both Flow & Breakdown

21 Monday May 2018

Posted by petersironwood in America, management, psychology, Uncategorized

≈ 3 Comments

Tags

collaboration, contextual design, Design, environment, error messages, HCI, human factors, learning, pattern language, pliant systems, politics, usability

Support Both Flow & Breakdown

Prolog/Acknowledgement/History:

Only a few days after moving into our San Diego home (with a beautiful drip-irrigated garden), I glanced outside to see a geyser sprouting about ten feet into the air. San Diego can only survive long term if people conserve water! Yet, here we were — wasting water. I rushed outside to turn off the sprinkler system. As I ran to the controller, I noted in passing that the nearby yard lay soaked with pools of water. I turned off the sprinklers — except for the geyser which continued its impersonation of “Old Faithful.” I tried turning the valve on that particular sprinkler and did manage in that way to completely soak myself but the water waste continued unabated. We called the gardener who knew and explained the location of the shutoff valve for the entire house and garden. Later, he came and replaced the valve with a newer type. The old type, which had failed, failed by being stuck in the fully ON position!

Often in the course of my life, I have been frustrated by interacting with systems — whether human or computer — that were clearly designed with a different set of circumstances than the one I found myself in at the time. In a sense, the Pattern here is a specific instance of a broader design Pattern: Design for Broad Range of Contexts. The specific example that I want to focus on in this Pattern is that design should support the “normal” flow of things when they are working well, but also be designed to support likely modes of breakdown.

During the late 1970’s, I worked with Ashok Malhotra and John Carroll at IBM Research on a project we called “The Psychology of Design.” We used a variety of methods, but one was observing and talking with a variety of designers in various domains. One of the things we discovered about good designers was a common process that at first seemed puzzling. Roughly speaking, designers would abstract from a concrete situation, a set of requirements. They would then create a design that logically met all the requirements. Since we were only studying design and not the entire development process (which might include design, implementation, debugging, etc.) it might seem that the design process would end at that point. After all, the designer had just come up with a design that fulfilled the requirements.

What good designers actually did however, at least on many occasions, was to take their abstract design and imagine it operating back in the original concrete situation. When they imagined their design working in this concrete reality they often “discovered” additional requirements or interactions among design elements or requirements that were overlooked in the initial design. While unanticipated effects can occur in purely physical systems, (e.g., bridges flying apart from the bridge surface acting like a wing; O-rings cracking at sufficiently cold temperatures), it seems that human social systems are particularly prone to disastrous designs that “fulfill” the requirements as given.

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The Pattern here specifically focuses on one very common oversight. Systems are often designed under the assumption that everything in the environment of the system is working as it “should” or as intended. This particular type of breakdown was featured in an important theoretical paper authored by Harris and Henderson and presented at CHI 99. That paper claimed systems should be “pliant” rather than rigid. A common example most readers have had with a non-pliant system is to call an organization and be put into an automated call-answering system that does not have the appropriate category anywhere for the current situation but still does not have a way to get through to a human operator.

A telling example from their CHI Proceedings article is that of a paper-based form that was replaced with a computerized system with fixed fields. So, for example, there were only so many characters for various address fields. When someone needed to make an exception to the address syntax with a paper form, it was easy. They could write: “When it’s time to ship the package, please call this number to find out which port the Captain will be in next and ship it there: 606-555-1212.” In the computerized form, this was impossible. In fact, there were so many such glitches that the workers who actually needed to get their work done used the “required” “productivity-enhancing” computer system and also duplicated everything in the old paper system so that they could actually accomplish their tasks.

As part of the effort (described in the last blog post) to get IBM to pay more attention to the usability of its products, we pushed to make sure every development lab had a usability lab that was adequately equipped and staffed. This was certainly a vital component. However, usability in the lab did not necessarily ensure usability in the field. There are many reasons for that and I collaborated with Wendy Kellogg in the late 1980’s to catalog some of those. This effort was partly inspired by a conversation with John Whiteside, who headed the usability lab for Digital Equipment Corporation. They brought people who used a word processor into their usability lab and made numerous improvements in the interface. One day he took some of the usability group out to observe people using the text editor in situ in a manuscript center. They discovered that the typists spent 7 hours every day typing and 1 hour every day counting up, by hand, the number of lines that they had typed that day (which determined their pay). Of course, it was now immediately obvious how to improve productivity by 14%. The work of this group seems to have been inspirational for Beyer & Holtzblatt’s Contextual Design as well as the Carroll & Kellogg (1989) paper on “Artifact as Theory Nexus.”

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Author, reviewer and revision dates:

Created by John C. Thomas in May, 2018

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Related Patterns:

Reality Check, Who Speaks for Wolf?

Abstract:

When designing a new system, it is easy to imagine a context in which all the existing systems that might interact with the new system will operate “normally” or “properly.” In order to avoid catastrophe, it is important to understand what reasonably likely failure modes might be and to design for those as well.

Context:

For people to design systems, it is necessary to make some assumptions that separate the context of the design from what is being designed. There is a delicate balance. If you define the problem too broadly, you run the risk of addressing a problem that is too intractable, intellectually, logistically or financially. On the other hand, if you define the problem too narrowly, you run the risk of solving a problem that is too special, temporary, or fragile to do anyone much good.

In the honest pursuit of trying to separate out the problem from the context, it happens that one particular form of simplification is particularly popular. People assume that all the systems that will touch the one they are designing will not fail. That often includes human beings who will interact with the system. Such a design process may also presume that electrical power will never be interrupted or that internet access will be continuous.

Systems so designed may have a secondary and more insidious effect. By virtue of having been designed with no consideration to breakdowns, the system will tend to subtly influence the people and organizations that it touches not to prepare for such breakdowns either.

Problem:

When the systems that touch a given system do fail, which can always happen, if no consideration has been given to failure modes, the impact can be disastrous. Most typically, when the system has not been designed to deal with breakdowns, the personnel selection, training, and documentation also fail to deal with breakdowns. As a result, not only are the mechanisms of the systems unsuited to breakdowns; the human organization surrounding the breakdown is also unprepared. Not only is there a possibility of immediate catastrophe; the organization is unprepared to learn. As a result, mutual trust within and of the organizations around the system are also severely damaged.

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Forces:

Design is a difficult and complex activity and the more contingencies and factors that are taken into account, the more difficult and complex the design activity becomes.

Not every single possibility can be designed for.

People working on a design have a natural tendency to “look on the bright side” and think about the upside benefits of the system.

People who try to “sell” a new system stress its benefits and tend to avoid talking about its possible failures.

It is uncomfortable to think about possible breakdowns.

When anticipated breakdowns occur, the people in relevant organizations tend to think about how to fix the situation and reduce the probability or impact of breakdowns for the future.

When unanticipated breakdowns occur, the people in relevant organizations tend to try to find the individual or individuals responsible and blame them. This action leaves the probability and impact of future breakdowns unimproved.

When people within an organization are blamed for unanticipated system failure, it decreases trust of the entire organization as well as mutual trust within the organization.

* Even when consideration of support for breakdown modes is planned for, it is often planned for late in an ambitious schedule. The slightest slippage will often result in breakdowns being ignored.

Solution:

When designing a system, make sure the design process deals adequately with breakdown conditions as well as the “normal” flows of events. The organizations and systems that depend on a system also need to be designed to deal with breakdowns. For example, people should be trained to recognize and deal with breakdowns. Organizations should have a process in place (such as the After Action Review) to learn from breakdowns. Having a highly diverse design team may well improve the chances of designing for likely breakdowns.

Resulting Context:

Generally speaking, a system designed with attention to supporting both the “normal” flow of events and likely breakdown modes will result in a more robust and resilient system. Because the system design takes these possibilities into account, it also makes it likely that documentation and training will also help people prepare for breakdowns. Furthermore, if breakdowns are anticipated, it also makes it easier for the organization to learn about how to help prevent breakdowns and to learn, over time, to improve responses to breakdowns. There is a further benefit; viz., that mutual trust and cooperation will be less damaged in a breakdown. The premise that breakdowns will happen, puts everyone more in the frame of mind to learn and improve rather than simply blame and point fingers.

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Examples:

1. Social Networking sites were originally designed to support friends sharing news, information, pictures, and so on. “Flow” is when this is what is actually going on. Unfortunately, as we now know, social media sites can also not work as intended, not because there are “errors” in the code or UX of the social media systems but because the social and political systems that form the context for these systems have broken down. The intentional misappropriation of an application or system is just one of many types of breakdowns that can occur.

2. When I ran the AI lab at NYNEX in the 1990’s, one of the manufacturers of telephone equipment developed a system for telephone operators that was based on much more modern displays and keyboards. In order to optimize performance of the system, the manufacturer brought in representative users; in this case, telephone operators. They redesigned the workflow to reduce the number of keystrokes required to perform various common tasks. At that time, operators were measured in terms of their “Average Work Time” to handle calls.

In this particular case, the manufacturer had separated the domain into what they were designing for (namely, the human-machine interface between the telephone operator and their terminal) from the context (which included what the customer did). While this seemed seemed like a reasonable approach, it turned out when the HCI group at NYNEX studied the problem with the help of Bonnie John, the customer’s behavior was actually a primary determiner of the overall efficiency of the call. While it was true that the new process required fewer keystrokes on the part of the telephone operator, these “saved” keystrokes occurred when the customer, not the telephone operator, was on the critical path. In other words, the operator had to wait for the customer any way, so one or two fewer keystrokes did not impact the overall average work time. However, the suggested workflow involved an extra keystroke that occurred when the operator’s behavior was on the critical path. As it turned out, the “system” that needed to be redesigned was not actually the machine-user system but the machine-user-customer system. In fact, the biggest improvement in average work time came from changing the operator’s greeting from “New York Telephone. How can I help you?” to “What City Please?” The latter greeting tended to produce much more focused conversation on the part of the customer.

Just to be clear, this is an example of the broader point that some of the most crucial design decisions are not about your solution to the problem you are trying to solve but your decision about what the problem is versus what part of the situation you decide is off-limits; something to ignore rather than plan for. A very common oversight is to ignore breakdowns, but it’s not the only one.

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3. In a retrospective analysis of the Three-Mile Island Nuclear Meltdown, many issues in bad human factors came to light. Many of them had to do with an insufficient preparation for dealing with breakdowns. I recall three instances. First, the proper functioning of many components was shown by a red indicator light being on. When one of the components failed, it was indicated by one of a whole bank of indicator lights not being on. This is not the most salient of signals! To me, it clearly indicates a design mentality steering away from thinking seriously about failure modes. This is not surprising because of the fear and controversy surrounding nuclear power. Those who operate and run such plants do not want the public, at least, to think about failure modes.

Second, there was some conceptual training for the operators about how the overall system worked. But that training was not sufficient for real time problem solving about what to do. In addition, there were manuals describing what to do. But the manuals were also not sufficiently detailed to describe precisely what to do.

Third, at one critical juncture, one of the plant operators closed a valve and “knew” that he had closed it because of the indicator light next to the valve closure switch. He then based further actions on the knowledge that the valve had been closed. Guess what? The indicator light showing “value closure” was not based on feedback from a sensor at the site of the valve. No. The indicator light next to the switch was lit by a collateral current from the switch itself. All it really showed was that the operator had changed the switch position! Under “normal” circumstances, there is a perfect correlation between the position of the switch and the position of the valve. However, under failure mode, this was no longer true.

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4. The US Constitution is a flexible document that takes into account a variety of failure modes. It specifies what to do, e.g., if the President dies in office and has been amended to specify what to do if the President is incapacitated. (This contingency was not really specified in the original document). The Constitution presumes a balance of power and specifies that a President may be impeached by Congress for treasonous activity. It seems the US Constitution, at least as amended, has anticipated various breakdowns and what to do about them.

There is one kind of breakdown, however, that the U.S. Constitution does not seem to have anticipated. What if society becomes so divided, and the majority of members in Congress so beholden to special interests, that they refuse to impeach a clearly treasonous President or a President clearly incapacitated or even under the obvious influence of one or more foreign powers? Unethical behavior on the part of individuals in power is a breakdown mode clearly anticipated in the Constitution. But it was not anticipated that a large number of individuals would simultaneously be unethical enough to put party over the general welfare of the nation. Whether this is a recoverable oversight remains to be seen. If democracy survives the current crisis, the Constitution might be further amended to deal with this new breakdown mode.

5. In IT systems, the error messages that are shown to end users are most often messages that were originally designed to help developers debug the system. Despite the development of guidelines about error messages that were developed over a half century ago, these guidelines are typically not followed. From the user’s perspective, it appears as though the developers know that something “nasty” has just happened and they want to run away from it as quickly as possible before anyone can get blamed. They remind me of a puppy who just chewed up their master’s slippers and knows damned well they are in trouble. Instead of “owning up” to their misbehavior, they hide under the couch.

Despite the many decades of pointing out how useless it is to get an error message such as “Tweet not sent” or “Invalid Syntax” or “IOPS44” such messages still abound in today’s applications. Fifty years ago, when most computers had extremely limited storage, there may have been an excuse to print out succinct error messages that could be looked up in a paper manual. But today? Error messages should minimally make it clear that there is an error and how to recover from it. In most cases, something should be said as well as to why the error state occurred. For instance, instead of “Tweet not sent” a message might indicate, “Tweet not sent because an included image is no longer linkable; retry with new image or link” or “Tweet not sent because it contains a potentially dangerous link; change to allow preview” or “Tweet not sent because the system timed out; try again. If the problem persists, see FAQs on tweet time-out failures.” I haven’t tested these so I am not claiming they are the “right” messages, but they have some information.

Today’s approach to error messages also has an unintended side-effect. Most computer system providers now presume that most errors will be debugged and explained on the web by someone else. This saves money for the vendor, of course. It also gives a huge advantage to very large companies. You are likely to find what an error message means and how to fix the underlying issue on the web, but only if it is a system that already has a huge number of users. Leaving error message clarification to the general public advantages the very companies who have the resources to provide good error messages themselves and keeps entrenched vendors entrenched.

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References:

Alexander, C., Ishikawa, S., Silverstein, M., Jacobsen, M., Fiksdahl-King, I. and Angel, S. (1977), A Pattern Language: Towns, Buildings, Construction. New York: Oxford University Press.

Beyer, Hugh and Holtzblatt, Karen (1998): Contextual design: defining customer-centered systems. San Francisco: Elsevier.

Carroll, J., Thomas, J.C. and Malhotra, A. (1980). Presentation and representation in design problem solving. British Journal of Psychology/,71 (1), pp. 143-155.

Carroll, J., Thomas, J.C. and Malhotra, A. (1979). A clinical-experimental analysis of design problem solving. Design Studies, 1 (2), pp. 84-92.

Carroll, J. and Kellogg, W. (1989), Artifact as Theory-Nexus: Hermeneutics Meets System Design. Proceedings of the ACM Conference on Human Factors in Computing Systems. New York: ACM, 1989.

Casey, S.M. (1998), Set Phasers on Stun: And Other True Tales of Design, Technology, and Human Error. Santa Barbara, CA: Aegean Publishing.

Gray, W. D., John, B. E., & Atwood, M. E. (1993). Project Ernestine: Validating GOMS for predicting and explaining real-world task performance. Human Computer Interaction, 8(3), 237-309.

Harris, J. & Henderson, A. (1999), A Better Mythology for System Design. Proceedings of ACM’s Conference on Human Factors in Computing Systems. New York: ACM.

Malhotra, A., Thomas, J.C. and Miller, L. (1980). Cognitive processes in design. International Journal of Man-Machine Studies, 12, pp. 119-140.

Thomas, J. (2016). Turing’s Nightmares: Scenarios and Speculations about “The Singularity.” CreateSpace/Amazon.

Thomas, J.C. (1978). A design-interpretation analysis of natural English. International Journal of Man-Machine Studies, 10, pp. 651-668.

Thomas, J.C. and Carroll, J. (1978). The psychological study of design. Design Studies, 1 (1), pp. 5-11.

Thomas, J.C. and Kellogg, W.A. (1989). Minimizing ecological gaps in interface design, IEEE Software, January 1989.

Thomas, J. (2015). Chaos, Culture, Conflict and Creativity: Toward a Maturity Model for HCI4D. Invited keynote @ASEAN Symposium, Seoul, South Korea, April 19, 2015.

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Introducing Peter S Ironwood

24 Sunday Nov 2013

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Aunt Rennie, customer service, human factors, user experience

I’m not the kind of guy who likes to talk much about me. That’s not the point. It doesn’t matter much that when I was five, both my parents abandoned me or why. Doesn’t matter I spent most of my childhood in the San Diego area being gawked at for my tall skinny frame and unruly blond hair and steel grey eyes. What does matter is that know I am on the lookout. For what? For things that are WRONG in this world. We need to get another thing straight. I do this for ME, not for you, though you can certainly benefit. And, when I say “wrong” I don’t mean things that are evil, though God knows there is plenty of that too. No, what I am talking about is plain simple stupidity. People make a product or sell you some so-called “service” and it sucks. And why does it suck? Because they are not satisfied to make a billion dollars by selling a shipload of vacuum cleaners or cameras or software systems that actually work. No. Instead, they want to make 1,000,020,000 bucks by not spending 20K to bring me in and see whether their blasted microwave or or digital watch or whatever actually works for human beings. And, do you want to know what’s *really* frigging stupid? They don’t make their stupid billion dollars anyway? Why? Because they end up spending millions of dollars on help lines and millions more on TV ads that show some sexy, tight-skirted, plump-lipped open mouth girl seeming to have a big O just from using their vacuum cleaner. At least those ads I like even though it isn’t going to get me to buy their vacuum cleaner. But what is with these ads showing people being completely idiotic and pointless. If the girl air-brushed into that desperate anorexic twitch isn’t going to make me buy their machine, why is some bumble-headed fat guy walking into a wall going to do the trick?

Case in point: Telephone menu systems that have no obvious option for talking with a human being. Have you ever run into one of those? “Please listen to the following menu items and choose the one that describes your car. Press 1 for black car. Press 2 for a convertible. Press 3 for a hummer. Press four to hear these options again.” WHAT???!! I own a white BMW sedan. The Greeks had an interesting word: “hubris” to describe self-defeating pride. First of all, nobody thinks of all the possible things you might want from this “service” number ahead of time. Nobody. So, there should ALWAYS be a choice for talking with an operator. Do you really need a Ph.D. in psychology from Stanford to know this? Wouldn’t just living on the planet for six or seven years do the trick? More later. I have to go try to glue the fragments of my phone back together before Aunt Rennie gets here. She gets freaked out by my temper.

petersironwood

~ Finding, formulating and solving life's frustrations.

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Introducing Peter S Ironwood