Like every self-respecting human-computer interaction (HCI) lecturer, I introduce task analysis or the technique of analysing how people perform a task or job, to my students a couple of weeks into a given course. Each time I am aware that I fail to get excited about task analysis and so give it a bad press. (more…)
People are the weakest link in all computer systems. We hear about the best cryptography money can buy: integrity checking, sender/receiver identity authentication, digital signatures, and then someone leaves a list of passwords on a post-it note stuck above a computer and in an instant renders all the algorithms pointless. Or the same someone automatically gives out his password over the telephone or by email when ‘technical support’ asks so that they can reset it - another victim of phishing. (more…)
The recent furore over the 2012 Olympics Logo reminds me of how people react to the user interfaces they find on everything they interact with, from websites to washing machines. If an interface, like a logo, is well-designed, no one notices or mentions it. If it is difficult or unsightly, people complain loudly and when given a choice, won’t use an interface they don’t like. Interaction designers, like IT support staff, are never thanked when all is well and severely criticised when interfaces cause users problems. (more…)
In the 1530s when Henry VIII realised that dissolving the monastries would get him much needed assets, he commissioned a map of London, paying particular attention to ‘lawless’ Southwark. He wanted to see if the borough had any money he could take off them. Henry VIII was a smart man, he knew that the right sorts of information bring wealth and power.
I saw the resulting map last year at the British Library exhibition London: A Life in Maps along with many others - maps of wills and estates, Victorian cab fare maps, cycling maps and tourist maps. Each map was primarily motivated by the need to learn more about an area of London in order to make or save money, especially when making your way around the ever growing London.
A structural engineer once told me that he would always win pictionary if he was teamed with another engineer. Structural engineers have a symbolic language of their own and use it, normally in the workplace, to communicate more accurately. To the onlooker it is all triangles, little circles and arrows. But to the trained eye they represent bridge spans with fixed supports under uniform loads. Similarly, electrical engineers use seemingly incomprehensible symbols to describe apparatus layout. (more…)
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