Guiding Principles

1
Guiding Principles

• Krug I

2
Krugs First Law of Usability

• Dont Make Me Think
• Make it so obvious, the user doesnt pause or
  interpret anything.
• Example p. 14
• Jobs Employment Opportunities Job-O-Rama

3

• Visitors to your site shouldnt think
• Where am I?
• Where should I begin?
• Where did they put ___?
• What are the most important things on this page?
• Why did they call it that?

4
How we use the Web

• We dont read, we scan.
• We satisfice
• Make clearly defined areas.
• So, make pages with a clear visual hierarchy so
  people can tell what is important.
• Make what is clickable obvious
• Keep the noise down
• Poly, UCLA, CMC, USC

5
Krug, p41

• In general, I think its safe to say that users
  dont mind a lot of clicks as long as each click
  is painless and they have continued confidence
  that theyre on the right track.

6
Get rid of extra words

• Obvious things Click here, Menu, Mail
• Happy Talk
• Instructions
• JustJeans - check vouchers
• Claremont PD