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| Criterion |  Operations Root Cause Analysis |  Decision Making Constraint Analysis |  Decision Making Decision Tree |  Operations Kepner-Tregoe |
|---|---|---|---|---|
Purposedifferent | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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 decisions with follow-on paths and dependencies, a linear comparison is often not enough. A Decision Tree shows how options branch under conditions and which consequences hang on each branch. | 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 | Medium | Low | Medium | High |
Timedifferent | 1-4 h | 30-90 min | 30-90 min | 2-8 h |
Participantsdifferent | 3-8 | 2-8 | 1-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Decision Tree, Option Map, Assumption List | Problem Analysis, Decision Analysis, Risk Plan |
Tagsno overlap | Root causeProblem solvingQualityIncident | ConstraintsDecisionPlanningOptions | DecisionTreeOptions | Problem solvingRoot causeDecisionOperations |