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| Criterion |  Architecture arc42 |  Knowledge Modeling IBIS |  Decision Making Assumption Surfacing |  Architecture Architecture Decision Record |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 | Low | Medium | Low | Low |
Timedifferent | 1-2 Tage | 1-3 h | 45-90 min | 15-45 min |
Participantsdifferent | 1-4 | 2-8 | 2-8 | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | Issue Map, Positions, Argument Notes | Assumption List, Critical Assumptions, Learning Plan | ADR File, Decision Log, Rationale |
Tagsno overlap | ArchitectureDocumentationCommunication | RationaleKnowledgeDecision | AssumptionsRiskDecisionDiscovery | ArchitectureRationaleDocumentationGovernance |