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| Criterion |  Innovation Design Sprint |  Product Discovery Problem Interview |  Architecture Architecture Decision Record |  Product Discovery Solution Interview |
|---|---|---|---|---|
Purposedifferent | 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 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. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. |
Complexitydifferent | High | Medium | Low | Medium |
Timedifferent | 4-5 Tage | 30-60 min je Interview | 15-45 min | 30-60 min je Interview |
Participantsdifferent | 5-8 | 5-12 Interviews | 1-3 | 5-10 Interviews |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Prototype, Test Findings, Decision Rationale | Problem Evidence, Risk Notes, Customer Segments | ADR File, Decision Log, Rationale | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | Design sprintPrototypeValidationInnovation | DiscoveryInterviewsValidation | ArchitectureRationaleDocumentationGovernance | ValidationInterviewsPrototype |