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| Criterion |  Architecture Architecture Decision Record |  Systems Thinking Future Reality Tree |  Decision Making OODA Loop |  Architecture Request for Comments |
|---|---|---|---|---|
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. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. | In dynamic situations, decisions become outdated faster than they can be prepared. The OODA Loop holds observing, orienting, deciding, and acting together as a recurring rhythm so reaction does not slide into inertia. | 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 | Low | High | Medium | Medium |
Timedifferent | 15-45 min | 2-4 h | 15-60 min je Zyklus | 1-3 Wochen vom Draft bis zur Entscheidung |
Participantsdifferent | 1-3 | 3-8 | 1-8 | 3-20 Reviewer |
Formatdifferent | Async | Workshop | Workshop + async | Async |
Outputdifferent | ADR File, Decision Log, Rationale | Future Reality Tree, Negative Branches, Assumption List, Improved Injections | Situation Assessment, Decision Loop, Action Updates | RFC document, Reviewer comments, Decision rationale, Follow-up ADR or tickets |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | Theory of ConstraintsSystems thinkingChange | DecisionChangeLearningStrategy | ArchitectureDecisionAsyncGovernance |