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| Criterion |  UX Research Diary Study |  Operations A3 Problem Solving |  Business Strategy 5-Minuten VC-Check |  Operations Kaizen Event |
|---|---|---|---|---|
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 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. | 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. | For a tightly scoped process segment with noticeable waste, the method bundles shared energy for change. It suits situations that call for fast learning loops and visible adjustments. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-4 Wochen | 45-90 min | 5-15 min | 0.5-5 Tage |
Participantsdifferent | 5-20 | 2-5 | 1-5 | 4-10 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Diary Entries, Longitudinal Patterns, Experience Timeline | A3 Report, Action Plan, Root Cause Analysis | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step | Kaizen Charter, Waste List, Improvement Experiments, Standard Work Update |
Tagsno overlap | UX researchTrackingBehavior | LeanProblem solvingCoachingOperations | StartupValidationCompetition | LeanContinuous improvementOperations |