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| Criterion |  Decision Making Constraint Analysis |  Operations Fishbone Diagram |  Operations 5 Whys |
|---|---|---|---|
Purposedifferent | When an initiative stalls, the limit often lies not in the idea but in hard or soft boundary conditions. Constraint Analysis separates these limits and shows which of them can actually be shaped. | 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. |
Complexitysame | Low | Low | Low |
Timedifferent | 30-90 min | 30-60 min | 15-30 min |
Participantsdifferent | 2-8 | 2-8 | 2-6 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Fishbone Diagram, Cause Categories, Investigation Backlog | Root cause notes, Countermeasures |
Tagsno overlap | ConstraintsDecisionPlanningOptions | Root causeQualityOperations | Root causeIncidentLeanProblem solving |
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