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| Criterion | ![]() Knowledge Modeling IBIS | ![]() Product Discovery Outcome-Driven Innovation | ![]() 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. | Outcome-Driven Innovation clarifies customer problems, solution opportunities, and evidence. It separates jobs, desired outcomes, importance, satisfaction, and opportunity, and captures results as desired outcome statements, an opportunity landscape, and segments by underserved needs. | 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 | High | Low | Medium |
Timedifferent | 1-3 h | Mehrere Wochen | 15-45 min | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 2-8 | 2-6 researchers plus sample | 1-3 | 3-20 Reviewer |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Issue Map, Positions, Argument Notes | Desired outcome statements, Opportunity landscape, Segmentation by underserved needs, Innovation hypotheses | ADR File, Decision Log, Rationale | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | RationaleKnowledgeDecision | OutcomesInnovationResearchQuantitative | ArchitectureRationaleDocumentationGovernance | ArchitectureDecisionAsyncGovernance |



