61. User Knowledge
Knowledge in the World
Interpretation substitutes for learning
High ease of use on first encounter
Efficiency slowed by the need of interpretation
Knowledge in the Head
Requires learning
Low ease of use on first encounter
High efficiency
Adapted
from
The
Design
of
Everyday
Things,
Donald
Norman
(1988)
76. Value in Context Heuristics
Clearly Identify:
The value proposition
The target user
The target context
Leverage Context Specific Assets
Accommodate Context Specific Limitations
Purge Unnecessary Features & Content