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| Criterion |  UX Research First-click Testing |  Operations 5 Whys |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | When users immediately turn the wrong way on a screen or wireframe, first click testing checks initial orientation at high speed. The first click shows early whether expectation, labeling, and wayfinding fit together. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Low | Low | Medium | Medium |
Timedifferent | 1-2 Tage | 15-30 min | 2–4 h review as a planning range; preparation and evaluation additional | 45-90 min |
Participantsdifferent | 10-30 | 2-6 | Designers, developers as users, and facilitation | 2-5 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Click Heatmap, Success Rate, Design Recommendations | Root cause notes, Countermeasures | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | UXNavigationFindabilityValidation | Root causeIncidentLeanProblem solving | ArchitectureEngineeringFeedbackValidationTasks | LeanProblem solvingCoachingOperations |