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| Criterion |  Business Strategy 5-Minuten VC-Check |  Operations 5 Whys |  Operations Fishbone Diagram |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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 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. | 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 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 | Low | Medium |
Timedifferent | 5-15 min | 15-30 min | 30-60 min | 45-90 min |
Participantsdifferent | 1-5 | 2-6 | 2-8 | 2-5 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step | Root cause notes, Countermeasures | Fishbone Diagram, Cause Categories, Investigation Backlog | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | StartupValidationCompetition | Root causeIncidentLeanProblem solving | Root causeQualityOperations | LeanProblem solvingCoachingOperations |