Dyson's Fear

There's a classic book on making things usable called, The Design of Everyday Things by Donald A. Norman. It's a useful book for understanding how to make the devices around us easier to use.

One thing Norman rails against is arbitrarily changing standardized designs. There are a lot of things that aren't obvious, but don't cause problems because there are accepted layouts. You don't need instruction on how to drive a new car, because the controls are standard. This in spite of the fact that the standard steering wheel and pedals is not exactly obvious in its use.

Because of this principle, Norman doesn’t like faucets that have the one control that you turn to change the temperature and pull or push to control the amount of water. He figures the standard of two controls with the hot on the left is well known world-wide and should be maintained. I have to disagree with him here; the one-control kind is easier to use, since the two qualities of the water (temperature and volume) can easily be adjusted independently of one another. And that type of control has become popular enough that it is now a well-known standard of its own.

But there’s something we can all agree on: The new Dyson Tap design sucks. It is a sensor-driven, no-touch tap like many in today’s public washrooms, but being a Dyson product, it has to involve moving air. Sure enough, it has a built-in hand drier, so you can do all your hand-washing business without moving.

The trouble is, it’s far from obvious how it should be used. It looks like handlebars, so I assumed you have to do something with the bits sticking out the side. But no, you just hold your hands under them. More or less - the sensors seemed to be misaligned on the one I used. There are instructions etched on the tap itself, but the vague pictures of hands and arrows didn’t explain much.

I could have taken a picture of it, but you can just look that up at the link. Instead, I’ll include a picture of the instructions they had to print out to explain the new taps.

But there's one more problem.  I couldn't find the soap.  There were no soap containers in the washroom where I found these taps, and soap is not mentioned at the Dyson site, or any of the news stories I found about the tap.  So credit to Britain's Daily Mail, the only people who noticed the lack of soap.  This makes me wonder if people have really been washing their hands all these years.  Forgive me if I don't shake your hand.