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Perception & Context
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...
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The History of Usability
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...
View ArticlePerceptual Illusions
Our minds play tricks on us all the time. Once the information has entered our cognition via our senses, it still has to get processed to be understood. Like any other data, it’s all about context. For...
View ArticleAttention Control Errors & Perceptual Blindness
Harvard Vision Lab created a few experiments that feature Attention Controls Errors and Perceptual Blindness. Below is one of their optical illusions. Directions: concentrate on the central white dot....
View Articlep-Prims about Memory
Memory can be tricky—somethings seem to come to mind without bidding, while others are stubbornly evading our efforts at recalling them. We have many explanations for how and why somethings are easy to...
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Failure to Communicate
Sometimes failure to communicate happens at the end of the product distribution line. Below are some examples of what happens when sales people don’t pay attention to how their actions alter the...
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Where to post the “OK” Button on the Screen?
I have very strong opinions about where on the screen the OK or NEXT or SUBMIT buttons go in relation to CANCEL. Without giving it away, I’m going to walk through the design decision tree and provide a...
View ArticlePerceptual Focus Error
Early on in my academic career, I did research in a middle school classroom. Computers were just introduced to a bunch of kids that never experienced them directly before. There were very few computers...
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Review eBook: Affordances and Design
Victor Kaptelinin, a Professor at the Department of Information Science and Media Studies, University of Bergen, Norway, and the Department of Informatics, Umeaa University, Sweden, just published an...
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Inattention Errors in Extemporaneous Writing
Automation provides many opportunities for inattention errors. Extemporaneous writing/typing is particularly prone to errors so egregious that they are funny… in retrospect. Here are a few examples of...
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A Path in Life
There is a general recognition that time perception speeds up as we get older. As kids, we felt our summers lasted a lifetime; as adults, summertime slithers out of our hands before we even get a...
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