Autopilot Errors, Background Knowledge Errors, Conceptual Design, Diagnostic Errors, Errors, Interaction Design, Interface Design, Interruptus Errors, Misapplication of Problem Solving Strategies, Mode Errors, Perceptual Blindness, Perceptual Focus Errors, Pipsqueak Articles, Product Design Strategy, Scaffolding, Users, Working Memory

The History of Usability

by  • 

NASA Space Shuttle SR-71 Blackbird U2 Cockpit Designs

When did we start being concerned with usability? Some will say that such concern is part of being human: cavemen worked their stone tools to get them just right. Interaction design mattered even then. But the field of usability research really came into being when the tools we used started to run up against our cognitive and physical limitations. And to avoid hitting literal, as well as psychological, walls, it was the aviation engineers who started to think about usability seriously. While cars were becoming ever more sophisticated and trains ever faster, it was the airplanes that were the cause of most usability problems around WWI. Cars were big, but didn’t go very fast or had a lot of roads to travel on at the turn of the century. In the first decade of the 20th century, there were only 8,000 cars total in the U.S. traveling on 10 miles of paved roads. In 1900, there were only 96 deaths caused by the automobile accidents. Planes were more problematic. For one thing, the missing roads weren’t a problem. And a plane falling out of the sky in an urban area caused far more damage than a car ever could. Planes…

Read more →

Cognitive Blindness, Conceptual Design, Cultural Bias, Cultural Differences, Ethnographic & User Data, Featured, Interaction Design, Interface Design, Mirroring Errors, Pipsqueak Articles, Users

Be the Customer

by  • 

By our very nature, humans are an “us versus them” kind of mammal. We are quick to judge and categorize: “he’s our kind’a people” or “she’s management.” We adapt and root for our favorite sports teams, sometimes even resorting to violence to “defend our guys.” We peg an art department against the engineers; we side with nurses over doctors; we fight with democrats against republicans; we wave our flags in a spirit of nationalism. And it doesn’t matter if we all work for the same company, heal the same patients, want the same basic rights, or live on a very small planet—we tend to take sides. So it’s no surprise that when product designers develop products the feeling of “us against the users” creeps up into the process. To protect the design process from these “us versus them” impulses, we can create a well-realized user personas based on the the audience taxonomy developed during the conceptual design stage of product design. For each major category in the audience taxonomy, a sample fictional user is created which embodies all of the traits in that audience category: age, profession, socio-economic background, culture and sub-culture, interests and dislikes, family status, education level, etc.…

Read more →

Background Knowledge, Background Knowledge Errors, Mental Model Traps, Misapplication of Problem Solving Strategies, Pipsqueak Articles

Grabbity and Other Folksy Wisdom

by  • 

We spend our lives engaged in problem solving: When should I leave the house to get to work on time? What can I make for dinner given the stuff in my refrigerator? How much work do I need to get done today in order to leave a bit earlier tomorrow? What’s the best driving route given the traffic report coming over the car radio? Can I make the this green light? Can I talk my way out of a traffic ticket? What’s the maximum amount I can pack into my trunk after a COSTCO run? How can I get that stain off the carpet? Is this blog good-enough to post? Looking over this sample list of problems, it’s easy to see that some have to do with temporal and spatial processing (e.g. packing the trunk, picking the best route, judging speed, making schedules), some with background knowledge manipulation (e.g. coming up with a recipe given a list of ingredients, looking up cleaning strategies), some with social processing (e.g. ability to analyze social situations and make correct predictions of possible outcomes—”I will get that ticket, if I run that red light.”), and some with metacognitive tasks (e.g. judging quality, comparing standards…

Read more →

Anchoring Errors, Diagnostic Errors, Mental Model Traps, Metaphor Mistakes, Perceptual Blindness, Pipsqueak Articles

Perception & Context

by  • 

It’s All About Context When it comes to real-estate, it’s location, location, location. When it comes to design, it’s context, context, context. Consider the following scenario: you are going shopping at Good Will. You see a brand new coffee maker for $10. “Oh My God,” you say, “that’s incredibly expensive!” You don’t buy it. You go to Starbucks and see the exact same coffee maker on sale for $120. You get it—how can you pass up such a bargain? In a different setting, the perception of price of the coffee maker resolves as cheap even as the actual price is higher. Why? Why do we care about the context in which the product is sold as opposed to some other intrinsic characteristic? There are people who buy empty Tiffany’s blue boxes and cases. Why? So they can place jewelry and other gift items in there. The mere fact of being inside a blue box makes those object more valuable—they work harder. Again, the perceived value it’s not just in the intrinsic characteristic of an object in a box, but rather in the combination of the two: the product and its context. If a gift-giver tells you that the present you’re…

Read more →

Background Knowledge, Background Knowledge Errors, Cognitive Blindness, Pipsqueak Articles, Product Design Strategy, ZPD

Science vs. Media: Degree of Public Involvement

by  • 

Recently, there has been an explosion of public discourse (fueled by the media) on whether we should do away with tenure in our institutions of higher learning. The basic argument boils down to “tenured teachers can do as they please due to job security and education suffers as the result.” Tenured professors, we are told, focus on research and publishing incomprehensible articles aimed at a few individuals in the world who could even understand them. What’s the use in that, people ask? My son/daughter/neighbor’s kid are being taught by a TA (with poor language skills) while we pay thousands of dollars for the privilege of these children attending universities with all those lazy good-for-nothing tenured professors! You might say that my summary of this world-view is extreme and simplifies the ideas to their comic representation. But that’s the point: the articles (and the readers’ comments they inspire) are written to get an emotional response. The issues of tenure, of the research that these tenured professors are engaged in and the articles they publish, and of teaching styles are complex. To evaluate the contribution of a scientist to his field, one needs to have a certain amount of expertise in that…

Read more →

Background Knowledge Errors, Conceptual Design, Errors, Ethnographic & User Data, Interaction Design, Interface Design, Mental Model Traps, Mirroring Errors, Pipsqueak Articles, Product Design Strategy, Users

Metacognition Failure: If I find it easy, it must not be important

by  • 

Making something easy to understand is extremely difficult. A good designer knows this, knows how hard one has to work to make something comprehensible and easy to use. Unfortunately, users and consumers of products (including education) tend not to get it. We live in society ruled by “More is Better” p-prim: more stuff is better, more money is better, more food is good, more medication is great…more, more, more. Movies, television, newspapers, magazines, all reinforce this idea in our minds. We live in a “super-size me” world. But this basic decision-making algorithm leads to very faulty reasoning. There are multiple corollaries to the “more is better” axiom: thick books without graphics are more educationally valuable, more important (this is based on research I did many years ago with 5th graders); longer essays are clearly better and should get higher graders (the students worked harder/longer on them); big words are better than small ones in expressing ideas (thus we get very pretentious writing); work should be judged by the time it took to complete and not by the quality of the results it produces; more expensive clothes (cars, stereos, etc.) are clearly more valuable (this is a true statement, but most…

Read more →

Background Knowledge, Conceptual Design, Pipsqueak Articles, Product Design Strategy

Great Design = Technique + Ideation

by  • 

How do we get great design? Most of us can recognize it, but creating it is another matter. I spend a lot of time thinking about product design: How can Apple come up with product after product that’s beloved by their users? Why does Microsoft have difficulty achieving the same? I think the key is in combination of two necessary components of greatness: mastery of technique and richness of ideation. Let me explain. Consider art. What makes Picasso great? During his lifetime, the man was incredibly prolific. He worked in many different mediums from paint, to metal, to charcoal. He excelled at Analytical Cubism, easily surpassing Braques in both quantity and quality of work. Picasso borrowed from African art and from impressionists. He followed Matisse until Matisse’s students started to follow him. Picasso dived into an art form and explored with fury until he transformed it into something his own. He borrowed from everyone and bent it and molded it into a unique creation. Picasso was rich in ideation. But ideation is not enough. What good is an idea when it lacks execution? Picasso was an art prodigy. He was able to draw amazingly mature life drawings at age fifteen that most…

Read more →