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| Criterion |  Decision Making Constraint Analysis |  Operations Fishbone Diagram |  Operations ALPEN Method |  Operations Kepner-Tregoe |
|---|---|---|---|---|
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. | With an overloaded day full of too many tasks, a realistic picture of the day emerges. The method connects estimating, deciding, and buffer thinking so planning fits available energy and time. | For a disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. |
Complexitydifferent | Low | Low | Low | High |
Timedifferent | 30-90 min | 30-60 min | 10-20 min daily | 2-8 h |
Participantsdifferent | 2-8 | 2-8 | 1 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Async | Workshop + async |
Outputdifferent | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Fishbone Diagram, Cause Categories, Investigation Backlog | Daily Plan, Time Estimates, Review Notes | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | ConstraintsDecisionPlanningOptions | Root causeQualityOperations | PlanningTime managementProductivityOperations | Problem solvingRoot causeDecisionOperations |