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| Criterion |  Operations Fishbone Diagram |  Architecture Views and Beyond |  Operations 5 Whys |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 30-60 min | 1-3 Tage | 15-30 min | 1-4 h |
Participantsdifferent | 2-8 | 1-4 | 2-6 | 3-8 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Fishbone Diagram, Cause Categories, Investigation Backlog | Architecture Views, Cross-view Notes, Rationale | Root cause notes, Countermeasures | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | Root causeQualityOperations | DocumentationStakeholdersArchitecture | Root causeIncidentLeanProblem solving | Root causeProblem solvingQualityIncident |