Define
Target User Community
–Identify Usage Profiles
Perform Task Analysis to ensure proper functionality
–Define tasks and subtasks
–Establish task frequencies of use
–Matrix of users and tasks helpful
Select Evaluation Measures
–Time to learn
–Speed of performance for key benchmarks
–Rate and nature of common user errors
–Retention over time
–Subjective satisfaction: free-form
comments and feedback
Create
& Test Design Alternatives
–Use a wide range of mock-ups