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| Criterion |  Operations Process Mapping |  Decision Making Constraint Analysis |  Operations Root Cause Analysis |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
Purposedifferent | With a confusing workflow that has many handoffs, the method makes the actual process visible. It shows where work is passed on, delayed, or duplicated, so improvement targets the right spots. | 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 keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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. |
Complexitydifferent | Medium | Low | Medium | High |
Timedifferent | 1-3 h | 30-90 min | 1-4 h | 2-6 h |
Participantsdifferent | 3-10 | 2-8 | 3-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Process Map, Handoff List, Improvement Backlog | Constraint List, Hard/Soft Classification, Option Impact Notes, Decision Boundaries | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | ProcessOperationsImprovement | ConstraintsDecisionPlanningOptions | Root causeProblem solvingQualityIncident | RiskQualityOperationsRoot cause |