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| Criterion |  Product Strategy Lean Canvas |  Business Strategy 5-Minuten VC-Check |  Operations 5 Whys |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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. | 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 | Low | Low | High |
Timedifferent | 45-90 min | 5-15 min | 15-30 min | 1-6 Wochen |
Participantsdifferent | 1-6 | 1-5 | 2-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | StartupLeanAssumptionsBusiness model | StartupValidationCompetition | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |