Improve interface usability and design

Design interfaces that match human perception and cognitive processes

Creating interfaces where users don't get stuck because system behavior matches their expectations.

• · user task description
• · interface prototype
• · user behavior/eye-tracking data

• · usability evaluation report
• · mental model mappings
• · interaction redesign recommendations

Understanding of cognitive load, affordances, feedback theory; user testing access

• · Invisible state transitions (user lost)
• · Cognitive overload (too many options)
• · Mental model mismatch (unexpected behavior)
• · Delayed or missing feedback

• · Norman affordances principle
• · Cognitive load theory cited
• · Feedback and response time emphasis