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| Criterion |  Innovation Contradiction Analysis |  Operations Fishbone Diagram |  Operations Failure Mode and Effects Analysis |  Innovation TRIZ |
|---|---|---|---|---|
Purposedifferent | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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. | 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 | Low | High | High |
Timedifferent | 60-120 min | 30-60 min | 2-6 h | 1-4 h |
Participantsdifferent | 2-8 | 2-8 | 3-10 | 2-8 |
Formatdifferent | Workshop | Workshop | Workshop | Workshop + async |
Outputdifferent | Contradiction Statement, Abstraction Notes, Solution Principles, Concept Ideas | Fishbone Diagram, Cause Categories, Investigation Backlog | FMEA Table, Risk Priority, Mitigation Actions | Contradiction Statement, Inventive Principles, Solution Concepts |
Tagsno overlap | ContradictionsInnovationProblem solving | Root causeQualityOperations | RiskQualityOperationsRoot cause | InnovationProblem solvingContradictionsCreativity |