4. Main principles you remember?
Important concepts:
‣ Information scent
‣ Information architecture
‣ Mental models
1. Affordance
2. Navigation
3. Usability inspection
Wednesday, October 16, 13
5. Information foraging theory
Assumptions
about
people:
Maximize
benefits
Minimize
costs
Minimal
effort
(conserve
energy
aka
lazy)
1. Affordance
2. Navigation
3. Usability inspection
Wednesday, October 16, 13
Information scent
14. Information architecture
‣ How do you create an
information architecture that
makes sense for the users’
mental model?
‣ How can you find out the users’
mental model?
1. Affordance
2. Navigation
3. Usability inspection
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40. vs.
needs
i m p le me n t at i o n
mo de l
Wednesday, October 16, 13
goals
me n t a l
mo de l
41. ultimate EXCISE:
a nge t h e i r
i ng us e rs ch
Mak
ls to f i t t he
me n t a l mo de
t i o n mo de l .
i m p le me n t a
Wednesday, October 16, 13
42. 1. Don’t weld on training wheels
2. “pure” excise - let the machine decide
3. visual excise - ornamentation
4. Don’t stop the proceedings with idiocy
5. Don’t make users ask permission
6. Allow input whenever you have output
7. Don’t force users to go to another window to perform a function that
affects the current window
8. Don’t force users to remember where they put things
9. Don’t force users to move & resize windows
10.Don’t force users to reenter personal settings
11.Navigation is excise. Make it easier - how?
a. Reduce number of places to go
b. Provide signposts, overviews, mapping of controls to functions
c. Match user needs
d. Avoid hierarchies
Wednesday, October 16, 13