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| Criterion |  Operations Root Cause Tree Analysis |  Decision Making Constraint Analysis |  Operations Kepner-Tregoe |  Decision Making Decision Tree |
|---|---|---|---|---|
Purposedifferent | For a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 disturbance that's hard to pin down, the method cleanly separates problem, cause, and decision. It reduces mixing when symptoms allow several interpretations. | 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. |
Complexitydifferent | Medium | Low | High | Medium |
Timedifferent | 1-3 h | 30-90 min | 2-8 h | 30-90 min |
Participantsdifferent | 2-8 | 2-8 | 2-8 | 1-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Cause Tree, Evidence Notes, Countermeasures | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Problem Analysis, Decision Analysis, Risk Plan | Decision Tree, Option Map, Assumption List |
Tagsno overlap | Root causeTreeIncidentQuality | ConstraintsDecisionPlanningOptions | Problem solvingRoot causeDecisionOperations | DecisionTreeOptions |