I just wanted to echo a very good blog post about usability:
Users are busy not stupid.
As you design something, ask “is this relevant to what people are trying to do?” rather than “is this confusing?” […] It doesn’t matter whether people could figure something out. It matters whether they’re interested in figuring it out - is it part of what they’re trying to do, or an annoying sidetrack?
Read the original blog post and ask yourself, when designing something: “is this relevant to what people are trying to do?”.Go Top