How to evaluate analytically

How to evaluate analytically

1. Heuristic

   • Collection of principles
     • find violations of the principles
   • is the interface learnable?
   • System State should always be visible
   • User control and freedom
   • Consistency and standards
   • Error Prevention
   • Recognition versus recall
     • Recognition: users can see the options rather than memorizing
   • Flexibility and user efficiency
     • common task: fast to do
   • make users diagnose & recover from errors easy
   • offfer better documenntation
     • bit vague and high level
   • minimalist design

2. Claims Analysis

3. Walkthroughs

   • Self walkthrough with defined task
   • Task
     • 4 steps
       • check if the user would know the goal intuitively?
       • is the correct action there ? correct action with correct effect ?
       • if correct action is performed will the user see progress
   • Prototype
   • Persona
     • Motivation, processing style, self efficacy, risk taking, learning new tech
   • flaw: one persona may not be enough

4. Cognitive Modeling

   • GOMS