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| Criterion |  Product Discovery Solution Interview |  Architecture arc42 |  Innovation Design Thinking |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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. |
Complexitydifferent | Medium | Low | High | Low |
Timedifferent | 30-60 min je Interview | 1-2 Tage | 1 Tag bis mehrere Wochen | 15-45 min |
Participantsdifferent | 5-10 Interviews | 1-4 | 4-10 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Solution Feedback, Objection List, Validation Notes | Architecture Document, Context View, Runtime View, Deployment View | Problem Statement, Prototype, Test Learnings | ADR File, Decision Log, Rationale |
Tagsno overlap | ValidationInterviewsPrototype | ArchitectureDocumentationCommunication | InnovationPrototypeResearch | ArchitectureRationaleDocumentationGovernance |