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| Criterion |  Architecture Architecture Decision Record |  Knowledge Modeling IBIS |  Decision Making Assumption Surfacing |  Architecture arc42 |
|---|---|---|---|---|
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. | IBIS structures thinking about complex questions as a sequence of issues, ideas, and arguments. The method keeps discussions open without forcing them into premature consensus. | Plans often contain assumptions that were never openly stated and remain dangerous precisely because of that. Assumption Surfacing makes these silent premises visible and prioritizes which of them carry the initiative or could sink it. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 15-45 min | 1-3 h | 45-90 min | 1-2 Tage |
Participantsdifferent | 1-3 | 2-8 | 2-8 | 1-4 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Issue Map, Positions, Argument Notes | Assumption List, Critical Assumptions, Learning Plan | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | RationaleKnowledgeDecision | AssumptionsRiskDecisionDiscovery | ArchitectureDocumentationCommunication |