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| Criterion |  Operations Root Cause Analysis |  Operations Causal Factor Analysis |  Innovation TRIZ |
|---|---|---|---|
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. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | For technical contradictions or trade-offs, the method looks for solutions that resolve opposing requirements at the same time. It translates limits into an explicit picture of conflict that becomes workable. This produces not just compromises but more elegant principles. |
Complexitydifferent | Medium | High | High |
Timedifferent | 1-4 h | 2-6 h | 1-4 h |
Participantsdifferent | 3-8 | 3-10 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Contradiction Statement, Inventive Principles, Solution Concepts |
Tagsno overlap | Root causeProblem solvingQualityIncident | CausalityIncidentRoot causeTimeline | InnovationProblem solvingContradictionsCreativity |
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