Tag Archive for mental models

Attention, Attention Controls Errors, Cognitive Blindness, Conceptual Design, Cultural Bias, Featured, Flow, Interaction Design, Interface Design, Mental Model Traps, Perceptual Focus Errors, Pipsqueak Articles, Product Design Strategy, Users, Working Memory

Multitasking Myth

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I’ve been noticing a lot of praise and demand for mutlitaskers: “We are looking for a talented individual who is [insert a laundry list of qualifications here] and is also a great multitasker!” or “Women are naturally better at multitasking.” or “Not only is he gifted, but he is able to work on all these projects simultaneously. If only we had a dozen more just like him!” (—probably just to get anything done!) The interesting aspect of this increased demand for multitasking is the rise of ADHD diagnosis. So I thought it would be an interesting exercise to pin down what exactly is being praised and diagnosed. A Curious Case of ADHD Let’s start with formal diagnostic criteria for ADHD (attention deficit hyperactivity disorder). What are the symptoms of ADHD? Below is a list of attributes that is adapted from the Diagnostic and Statistical Manual of Mental Disorders 4th ed. (DSM-IV). When you read this list the first time, imagine an eight year old boy trapped in an elementary classroom. On the second reading, consider an 80-year-old woman in a nursing home. On the third, visualize a soldier just back from Afghanistan. And finally, when you read the list for…

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Conceptual Design, Cultural Differences, Pipsqueak Articles, Product Design Strategy

ICT & Human Rights: A Round Table Discussion at IADIS 2011 Conference

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IADIS conference on ICT, Society and Human Beings, Rome, July 24-26, 2011 Proposal for a Joint Multi-conference Session Title: ICT and Human Rights: A Round Table Chair/Organizer: Olga Werby Background and Purpose Information and Communication Technologies (ICT)—internet, web, and social media—are fast becoming a comprehensive repository and soon an archive of human knowledge. With access to ICT, an individual can become informed on everything from healthcare issues to civic problems to legal concerns. One hundred years ago, people were discussing the need for basic literacy and its impact on the human condition. Today, we should be discussing digital literacy and access in the same way. Digital literacy can be seen as a basic human right. Individuals can also impact society, react, and reach out. ICT is both a powerful tool for materializing human rights and is also challenging human rights. I propose a Round Table Session, which is open to all participants of IADIS multi-conferences, to be titled “ICT and Human Rights.” This session would provide a forum on cross-disciplinary research and development, and action, in the fields of what rights are important and can be better facilitated by ICT in: e-Democracy, ICT and Society, e-Culture, e-Health, e-Learning,  human-computer interaction,…

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Anchoring Errors, Background Knowledge Errors, Causal Net Problems, Diagnostic Errors, Errors, Mental Model Traps, Pipsqueak Articles

Alternative Medicine, Placebos, and Rasputin

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In the last few weeks there has been several articles and studies published on the effectiveness of alternative medicines and placebos: “Placebos Help Patients Even Without Faking It, Scientists Say“; “Sugar Pills Help, Even When Patients are Aware of Them“; and “Alternative remedies ‘dangerous’ for kids says report“; “Doctors warn over homeopathic ‘vaccines’“. The gist of these beliefs derives from several factors: People Tend to Get Better: most of us get well over time even without medical intervention. Colds pass; flues do too. Most infections heal with time without the aid of antibiotics. Evolution have provided the human race with a great immune system. Medicine helps, we get better faster with treatment. But in most cases, we survive. So when you hear someone recommend an alternative medicine and predict that a cold will go away in three days, chances are you will get better. And over time, we the people develop p-prims (folksy wisdoms) that link health with alternative tratments. “Natural Chemicals” p-Prims: there is a strong belief among industrialized societies, at the present time, that “natural” is better for us than “artificial”. There are many sources of this belief, too many to cover in this short article. And somehow,…

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Anchoring Errors, Causal Net Problems, Cognitive Blindness, Conceptual Design, Cultural Bias, Cultural Differences, Errors, Group Decision Errors, Mental Model Traps, Mirroring Errors, Misapplication of Problem Solving Strategies, Pipsqueak Articles, Product Design Strategy, Scaffolding

TSA: the Good, the Bad, and the Ugly

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There has been a lot of stories lately about the Transportation Security Administration (TSA), and most have been less than flattering (to say the least). How can an agency that was designed to “serve and protect” the citizens of the United States from harm evoke such wrath from ordinarily shy and non-vocal travelers? This blog is about product design, and so my analysis of the situation will treat this as a failure of product design. Where are the failures? Mistake #1 TSA Conceptual Design: Blocking There are bad guys out there that want to do us—citizen travelers from US—harm. There are the box-cutter carrying terrorists, the shoe-bombers, the liquid explosives bandits, the underwear-bombers, the printer cartridge explosives engineers. TSA installed airport security measures that would counteract each of these threats as they revealed themselves. The basic conceptual design strategy here is blocking: identify a threat and find an effective block. This is a strategy based on hindsight: if we knew that people could sneak bombs in their underwear, then we would have had a way to block it. We didn’t know, but now we do, and so we created systems to block this threat in the future. TSA Game Plan: Escalating…

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Background Knowledge, Background Knowledge Errors, Contributor, Errors, Interaction Design, Interface Design, Mental Model Traps, Product Design Strategy, Scaffolding, Users

More is always better – Or so most think!

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Tugend, A., (2010). “For the Dishwasher’s Sake, Go Easy on the Detergent.” NY Times Online. Visited on November 04, 2010: http://www.nytimes.com/2010/03/13/your-money/13shortcuts.html   If dishwashers do not seem to be doing their job or if your clothes are not coming out as soft as you’d like them to, or if these machines break down easily, it is most likely due to “user error.” We throw in multiple fabric softener sheets because more is better. More isn’t better in this case! The excess sheets liquefy when the dryer gets hot and gum up the dryer. Most people use ten to fifteen times the amount of soap they need. This excess soap is detrimental to the life of the machines.   This article has some clear implications for interaction and interface design.  User errors are likely to happen. Even if you have a manual with detailed instructions, the chances of somebody reading that manual are very slim. Even if they read it, they are still likely to err. How can design inculcate the right usage in the user? In this case, what can design do to prevent errors resulting from the ‘More is better’ p-prim?    Possible Interaction Design Solutions: Solutions could be…

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Attention, Contributor, Flow, Interaction Design, Long Term Memory

Re “Forget What You Know About Good Study Habits”

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Carey, B. (2010). “Forget What You Know About Good Study Habits.” New York Times Online. Retrieved on 26 October, 2010: http://www.nytimes.com/2010/09/07/health/views/07mind.html The main topic of this article is to dispel a few beliefs about effective study habits. According to this article, research has clearly demonstrated that we don’t have credible evidence for the utility of popular learning-style approaches that we follow. The article also outlines a few simple techniques that can reliably improve how much we learn from studying. Personally, I wish I read this article when I was a full time student as it might have helped me to be a better learner. Conceptual Design: With each of us having specific learning styles, a designer for a learning product can build a system that adopts to our learning styles. For example a system can test its users and determine their learning style and focus on a approach that might make the user learn faster and better. If the learning is tough, learners (Students) might lose interest and motivation. So effective approaches of learning such as variability in setting and materials must be used to improve learnability and retention.  Such design approaches would make learning easy and engage the users…

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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

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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…

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