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| Criterion | ![]() Product Strategy Product Canvas | ![]() Product Discovery Fake Door Test | ![]() Operations Fishbone Diagram | ![]() Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | When product goal and feature scope don't yet fit cleanly together, it creates a shared working picture. It connects need, core features, and assumptions into a solid starting point. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. | 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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitydifferent | Medium | Medium | Low | High |
Timedifferent | 1-2 h | 1-5 Tage | 30-60 min | 2-6 h |
Participantsdifferent | 2-8 | Nutzertraffic | 2-8 | 3-10 |
Formatdifferent | Workshop + async | Async | Workshop | Workshop |
Outputdifferent | Product Canvas, Product Assumptions, Scope Notes | Click Data, Interest Signal, Learning Decision | Fishbone Diagram, Cause Categories, Investigation Backlog | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | CanvasDiscoveryScope | ValidationExperimentsDemandDiscovery | Root causeQualityOperations | RiskQualityOperationsRoot cause |



