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| Criterion |  Operations Standard Work Analysis |  Architecture Architecture Decision Record |  Operations Fishbone Diagram |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | 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. | 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. | 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 | Medium | Low | Low | Low |
Timedifferent | 1-3 h | 15-45 min | 30-60 min | 15-30 min |
Participantsdifferent | 2-6 | 1-3 | 2-8 | 2-6 |
Formatdifferent | Workshop | Async | Workshop | Workshop |
Outputdifferent | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | ADR File, Decision Log, Rationale | Fishbone Diagram, Cause Categories, Investigation Backlog | Root cause notes, Countermeasures |
Tagsno overlap | LeanProcessQuality | ArchitectureRationaleDocumentationGovernance | Root causeQualityOperations | Root causeIncidentLeanProblem solving |