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| Criterion |  Architecture Architecture Decision Record |  Delivery RAID Log |  Operations A3 Problem Solving |  Operations 5 Whys |
|---|---|---|---|---|
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. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Low | Low | Medium | Low |
Timedifferent | 15-45 min | 30 min Setup, dann laufend | 45-90 min | 15-30 min |
Participantsdifferent | 1-3 | 1-3 maintaining, briefing for everyone | 2-5 | 2-6 |
Formatdifferent | Async | Async | Workshop + async | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | RAID Log, Status Report Source | A3 Report, Action Plan, Root Cause Analysis | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | RiskTrackingStakeholdersGovernance | LeanProblem solvingCoachingOperations | Root causeIncidentLeanProblem solving |