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| Criterion |  Innovation Design Sprint |  Product Discovery Problem Interview |  Architecture arc42 |  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. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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 | 1-2 Tage | 30-60 min je Interview |
Participantsdifferent | 5-8 | 5-12 Interviews | 1-4 | 5-10 Interviews |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prototype, Test Findings, Decision Rationale | Problem Evidence, Risk Notes, Customer Segments | Architecture Document, Context View, Runtime View, Deployment View | Solution Feedback, Objection List, Validation Notes |
Tagsno overlap | Design sprintPrototypeValidationInnovation | DiscoveryInterviewsValidation | ArchitectureDocumentationCommunication | ValidationInterviewsPrototype |