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| Criterion |  Operations Kepner-Tregoe |  Decision Making Constraint Analysis |  Operations Failure Mode and Effects Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
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 process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | High | Low | High | High |
Timedifferent | 2-8 h | 30-90 min | 2-6 h | 1-6 Wochen |
Participantsdifferent | 2-8 | 2-8 | 3-10 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Analysis, Decision Analysis, Risk Plan | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | FMEA Table, Risk Priority, Mitigation Actions | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Problem solvingRoot causeDecisionOperations | ConstraintsDecisionPlanningOptions | RiskQualityOperationsRoot cause | QualityProblem solvingRoot cause |