Now what?

The small things add up

via Joel Spolsky’s post on User Interface Design:

That’s what days were like. A bunch of tiny frustrations, and a bunch of tiny successes. But they added up. Even something which seems like a tiny, inconsequential frustration affects your mood. Your emotions don’t seem to care about the magnitude of the event, only the quality.

UI is important because it affects the feelings, the emotions, and the mood of your users. If the UI is wrong and the user feels like they can’t control your software, they literally won’t be happy and they’ll blame it on your software.