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| Criterion |  Architecture Architecture Decision Record |  Operations Process Mapping |  Operations Root Cause Analysis |  Operations Fishbone Diagram |
|---|---|---|---|---|
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. | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 15-45 min | 1-3 h | 1-4 h | 30-60 min |
Participantsdifferent | 1-3 | 3-10 | 3-8 | 2-8 |
Formatdifferent | Async | Workshop | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | Process Map, Handoff List, Improvement Backlog | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Fishbone Diagram, Cause Categories, Investigation Backlog |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ProcessOperationsImprovement | Root causeProblem solvingQualityIncident | Root causeQualityOperations |