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| Criterion |  Innovation Design Sprint |  Innovation Double Diamond |  Product Discovery Solution Interview |  Product Discovery Problem 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. | For complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | 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. | 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. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 4-5 Tage | Wochen bis Monate | 30-60 min je Interview | 30-60 min je Interview |
Participantsdifferent | 5-8 | 3-12 | 5-10 Interviews | 5-12 Interviews |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prototype, Test Findings, Decision Rationale | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Solution Feedback, Objection List, Validation Notes | Problem Evidence, Risk Notes, Customer Segments |
Tagsno overlap | Design sprintPrototypeValidationInnovation | ProcessDivergenceInnovation | ValidationInterviewsPrototype | DiscoveryInterviewsValidation |