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| Criterion |  Innovation TRIZ |  Operations Causal Factor Analysis |  Operations Root Cause Analysis |  Innovation Contradiction Analysis |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | 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 a system should improve while another measure suffers as a result, the method makes the underlying conflict precisely formulable. It separates the desired effect from its side effect. This makes solutions possible that address the contradiction deliberately instead of half-heartedly. |
Complexitydifferent | High | High | Medium | Medium |
Timedifferent | 1-4 h | 2-6 h | 1-4 h | 60-120 min |
Participantsdifferent | 2-8 | 3-10 | 3-8 | 2-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Contradiction Statement, Inventive Principles, Solution Concepts | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas |
Tagsno overlap | InnovationProblem solvingContradictionsCreativity | CausalityIncidentRoot causeTimeline | Root causeProblem solvingQualityIncident | ContradictionsInnovationProblem solving |