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| Criterion |  Operations Kepner-Tregoe |  Decision Making Constraint Analysis |  Operations 5 Whys |  Operations ALPEN Method |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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. | 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. |
Complexitydifferent | High | Low | Low | Low |
Timedifferent | 2-8 h | 30-90 min | 15-30 min | 10-20 min daily |
Participantsdifferent | 2-8 | 2-8 | 2-6 | 1 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Problem Analysis, Decision Analysis, Risk Plan | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Root cause notes, Countermeasures | Daily Plan, Time Estimates, Review Notes |
Tagsno overlap | Problem solvingRoot causeDecisionOperations | ConstraintsDecisionPlanningOptions | Root causeIncidentLeanProblem solving | PlanningTime managementProductivityOperations |