View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Knowledge Modeling IBIS |  Knowledge Modeling Knowledge Mapping |  Product Discovery Test Card |  Product Discovery Fake Door Test |
|---|---|---|---|---|
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. | Knowledge Mapping makes knowledge, gaps, and transfer paths visible across a field. It fits when expertise should not just exist but also be findable and transferable. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 1-3 h | 1-3 h | 20-35 min | 1-5 Tage |
Participantsdifferent | 2-8 | 3-12 | 1-5 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Async |
Outputdifferent | Issue Map, Positions, Argument Notes | Knowledge Map, Critical Knowledge Areas, Transfer Plan | Test Card with a pre-set threshold | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | RationaleKnowledgeDecision | KnowledgeMappingRisk | ExperimentsValidationDiscoveryHypothesis | ValidationExperimentsDemandDiscovery |