What’s better, multifunctionality or single-purpose? If we refer to digital gadgets and interfaces design there are several good and bad examples for both approaches. Is there a limit for multifunctionality? The following imaginary design illustrates...

Poka-Yoke is a concept coming from Japan and means mistake-proof. It could be any mechanism helping users to avoid making mistakes while using an interface or product. The concept it’s focus on prevention, influencing the users’ behavior through the...

Now a days, life seems to be impossible without electronic devices. We need them and want them but if we not change the way we produce and consume them the impact on the environment will be too much for our little planet. As designers we need to make...

What can go wrong with a keypad design? Not much, we could think. Actually there are several things to make the interface easier to use (or usable at all!). Let’s see some examples. Google Voice interface. Image from funkyspacemonkey.com It’s...

This is a compilation of digital camera interfaces. Specially, I want to show the differences among button designs. This is not a product review and I don’t want to criticize too much, just to show them to see the differences. In order to properly...