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| Criterion |  UX Research Diary Study |  Operations 8D Problem Solving |  Business Strategy 5-Minuten VC-Check |  Operations Fishbone Diagram |
|---|---|---|---|---|
Purposedifferent | When experiences build up over days or weeks and a single session cannot capture them, Diary Study records the course of everyday life. Recurring triggers, moods, and habits become visible this way, beyond the sharpness of memory. | 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. | The 5-Minute VC Check clarifies opportunities and strategic options at the earliest idea stage. It compares problem quality, customer willingness to pay, alternatives, differentiation, and market potential, and captures the result as a VC-check note, go/sharpen/park decision, and risk list. | 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. |
Complexitydifferent | Medium | High | Low | Low |
Timedifferent | 1-4 Wochen | 1-6 Wochen | 5-15 min | 30-60 min |
Participantsdifferent | 5-20 | 4-10 | 1-5 | 2-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | UX researchTrackingBehavior | QualityProblem solvingRoot cause | StartupValidationCompetition | Root causeQualityOperations |