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Selected:Tree TestingLASR (Lightweight Approach for Software Reviews)Fishbone Diagram8D Problem Solving
| Criterion |  UX Research Tree Testing |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Fishbone Diagram |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | When a navigation exists but search paths still fail, tree testing checks findability without visual distraction. The method shows whether labels, levels, and paths really lead to the intended destination. | LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 1-2 Tage | 3–4 h for initial assessment; preparation and deeper analysis additional | 30-60 min | 1-6 Wochen |
Participantsdifferent | Based on research question | 1 or a small team; particularly suitable for 3–4 people | 2-8 | 4-10 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Findability Metrics, Path Analysis, Revised IA | Lean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checks | Fishbone Diagram, Cause Categories, Investigation Backlog | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Information architectureNavigationFindability | ArchitectureQualityRiskAssessmentLean | Root causeQualityOperations | QualityProblem solvingRoot cause |