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| Criterion |  Decision Making Constraint Analysis |  Product Discovery Test Card |  Innovation Design Sprint |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | The Test Card turns a critical assumption into a testable claim and specifies in advance which result counts as success. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | 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 | Low | Low | High | Medium |
Timedifferent | 30-90 min | 20-35 min | 4-5 Tage | 1-5 Tage |
Participantsdifferent | 2-8 | 1-5 | 5-8 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Test Card with a pre-set threshold | Prototype, Test Findings, Decision Rationale | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | ConstraintsDecisionPlanningOptions | ExperimentsValidationDiscoveryHypothesis | Design sprintPrototypeValidationInnovation | ValidationExperimentsDemandDiscovery |