View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Product Discovery Problem Interview |  Decision Making Assumption Surfacing |  Innovation TRIZ |  Innovation Contradiction Analysis |
|---|---|---|---|---|
Purposedifferent | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. | When a system should improve while another measure suffers as a result, the method makes the underlying conflict precisely formulable. It separates the desired effect from its side effect. This makes solutions possible that address the contradiction deliberately instead of half-heartedly. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 30-60 min je Interview | 45-90 min | 1-4 h | 60-120 min |
Participantsdifferent | 5-12 Interviews | 2-8 | 2-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Problem Evidence, Risk Notes, Customer Segments | Assumption List, Critical Assumptions, Learning Plan | Contradiction Statement, Inventive Principles, Solution Concepts | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas |
Tagsno overlap | DiscoveryInterviewsValidation | AssumptionsRiskDecisionDiscovery | InnovationProblem solvingContradictionsCreativity | ContradictionsInnovationProblem solving |