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| Criterion |  Knowledge Modeling IBIS |  Operations 5 Whys |  Business Strategy 5-Minuten VC-Check |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | 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. | 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 keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-3 h | 15-30 min | 5-15 min | 1-4 h |
Participantsdifferent | 2-8 | 2-6 | 1-5 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Root cause notes, Countermeasures | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | RationaleKnowledgeDecision | Root causeIncidentLeanProblem solving | StartupValidationCompetition | Root causeProblem solvingQualityIncident |