Usability will be based on optimising:
Two ways to successfully design:
1 The right, best way:
Know your user's tasks
Know your user
Know your technology
2 The
(alas) too often usual way:
Introspect about users and their needs
Test with:
users and/or
your friends
Like writing, both are used
concurrent and together
Basic
Guidelines and the design space we're using
So, what to do? The gold standard, blue-ribbon approach, top-shelf, is Users and Use
Know your users and their environment
cognitive and perceptual psychology
reflection
logs
surveys
interviews
org charts
remits
observation
Know their tasks
reflection
user logs
surveys
interviews
observation of users with current tasks
prototyping and discussion
Design to support users doing tasks
reflection
storyboards, mockups
rapid prototyping
cognitive models to test interfaces
cognitive walkthroughs
usability lab studies
Example start for IST Web site analysis
Full analysis as tech report
Published report as article
So get to work!