Seven principles
- Clarity · current state and next action are easy to understand
- Consistency · repeated states use repeated interaction patterns
- Efficiency · important work takes the fewest clear actions
- Accessibility · core functions work across input environments
- Trust · AI results, errors, and risky actions are explicit
- Adaptability · web, mobile, dashboard, and AI surfaces can scale
- Maintainability · structures remain reusable beyond one project
Review question
Can a user understand what happened, what can happen next, and what evidence supports the decision?