21. To create a product that must
satisfy a broad audience of
users, logic will tell you to make it
as broad in its functionality as
possible to accommodate the
most people. Logic is wrong. Alan
Cooper.
27. * Consistency *
Consistency is one of the most powerful
usability principles: when things always behave
the same, users don’t have to worry about
what will happen. Instead, they know what will
happen based on earlier experience. Jakob
Nielsen
28. * Usability
& Accessibility*
Also note that invariably when we design
something that can be used by those with
disabilities, we often make it better for
everyone.
Don Norman.
29. * Be Simple *
Simple can be harder than complex: You
have to work hard to get your thinking
clean to make it simple. But it’s worth
it in the end because once you get
there, you can move mountains. Steve
Jobs