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| Criterion |  Architecture Architecture Decision Record |  Product Discovery Solution Interview |  Architecture arc42 |  Innovation Design Sprint |
|---|---|---|---|---|
Purposedifferent | 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. | 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 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. |
Complexitydifferent | Low | Medium | Low | High |
Timedifferent | 15-45 min | 30-60 min je Interview | 1-2 Tage | 4-5 Tage |
Participantsdifferent | 1-3 | 5-10 Interviews | 1-4 | 5-8 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Solution Feedback, Objection List, Validation Notes | Architecture Document, Context View, Runtime View, Deployment View | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ValidationInterviewsPrototype | ArchitectureDocumentationCommunication | Design sprintPrototypeValidationInnovation |