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| Criterion |  Knowledge Modeling IBIS |  Decision Making Constraint Analysis |  Product Discovery Test Card |  Product Discovery Experiment Canvas |
|---|---|---|---|---|
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. | 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 experiments become unreadable after the fact, it arranges hypothesis, signal, and learning goal on a single canvas. It separates problem, assumption, solution, and evidence. The result is captured as a Completed Experiment Canvas and a Success Metric. |
Complexitydifferent | Medium | Low | Low | Low |
Timedifferent | 1-3 h | 30-90 min | 20-35 min | 30-60 min |
Participantsdifferent | 2-8 | 2-8 | 1-5 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Issue Map, Positions, Argument Notes | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Test Card with a pre-set threshold | Completed Experiment Canvas, Success Metric |
Tagsno overlap | RationaleKnowledgeDecision | ConstraintsDecisionPlanningOptions | ExperimentsValidationDiscoveryHypothesis | ExperimentsValidationDiscoveryHypothesis |