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| Criterion |  Operations Change Analysis |  Architecture Views and Beyond |  Operations 5 Whys |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | For a deviation after a change, the method isolates the influence of the altered condition. It narrows down which differences are relevant and which are just accompanying noise. | Views and Beyond organizes architecture into several views so no single diagram has to do everything at once. This makes it possible to choose the representation that fits the stakeholder's question. | 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. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 45-120 min | 1-3 Tage | 15-30 min | 45-90 min |
Participantsdifferent | 2-6 | 1-4 | 2-6 | 2-5 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Change Matrix, Cause Hypotheses, Validation Questions, Action List | Architecture Views, Cross-view Notes, Rationale | Root cause notes, Countermeasures | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ChangeRoot causeTroubleshootingComparison | DocumentationStakeholdersArchitecture | Root causeIncidentLeanProblem solving | LeanProblem solvingCoachingOperations |