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| Criterion |  Knowledge Modeling IBIS |  Agile 4Ls Retrospective |  Architecture Architecture Decision Record |  Architecture Request for Comments |
|---|---|---|---|---|
Purposedifferent | 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. | When a sprint should not only be assessed but also learned from, it captures experience in clear learning categories. It records what worked, what's missing, and what should run differently next time. | 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. | An RFC clarifies architecture context, options, and consequences. It structures technical context, alternatives, tradeoffs, open questions, and review feedback, and captures the result as an RFC document, reviewer comments, and a decision rationale. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | 1-3 h | 45–75 min | 15-45 min | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 2-8 | Team members involved | 1-3 | 3-20 Reviewer |
Formatdifferent | Workshop + async | Workshop | Async | Async |
Outputdifferent | Issue Map, Positions, Argument Notes | 4Ls Board, Learning Themes, Improvement Actions | ADR File, Decision Log, Rationale | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | RationaleKnowledgeDecision | RetrospectiveLearningReflectionTeam | ArchitectureRationaleDocumentationGovernance | ArchitectureDecisionAsyncGovernance |