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| Criterion |  Product Strategy Lean Canvas |  Engineering Hypothesis-Driven Troubleshooting |  Business Strategy Business Model Stress Test |  Operations 5 Whys |
|---|---|---|---|---|
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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | A Business Model Stress Test checks how well a business model holds up under pressure and headwinds. It compares strengths, risks, market logic, and courses of action. The result is captured as a stress-test report and action plan per scenario. | 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. |
Complexitydifferent | Medium | Medium | High | Low |
Timedifferent | 45-90 min | 30-240 min | Half day | 15-30 min |
Participantsdifferent | 1-6 | 1-6 | 3-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Stress Test Report, Action Plan per Scenario | Root cause notes, Countermeasures |
Tagsno overlap | StartupLeanAssumptionsBusiness model | TroubleshootingProblem solvingDiagnosis | StrategyBusiness modelRiskDiagnosis | Root causeIncidentLeanProblem solving |