Estimating Efficiency

We begin designing by sketching out ideas. But it’s hard to judge how an interface will feel by looking at screen layouts. This chapter shows you how to estimate how efficient different designs are, even before you prototype them.


Overcoming Familiarity Bias

Not long ago, a client asked me to redesign a form that would validate a customer’s address. In the UK the normal way to do this is to enter your postcode and then pick out your house from the resulting shortlist. It’s familiar but clunky. We had another option—a new service that let you start typing your address and then autocompleted it by matching it with a validated ...

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