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| Criterion |  Architecture Views and Beyond |  Systems Thinking Current Reality Tree |  Operations 5 Whys |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | 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. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | 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 an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 1-3 Tage | 2-6 h | 15-30 min | 1-6 Wochen |
Participantsdifferent | 1-4 | 3-8 | 2-6 | 4-10 |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Architecture Views, Cross-view Notes, Rationale | Current Reality Tree, Core Problems, Intervention Ideas | Root cause notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | DocumentationStakeholdersArchitecture | Systems thinkingRoot causeConstraintsCausality | Root causeIncidentLeanProblem solving | QualityProblem solvingRoot cause |