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| Criterion |  Operations Root Cause Analysis |  Innovation TRIZ |  Innovation Brainstorming |  Operations 8D Problem Solving |
|---|---|---|---|---|
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 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. | When a team faces an open question with many obvious directions, the method first creates breadth instead of premature commitment. It separates idea flow from evaluation and makes lines of thought visible, creating a pool for selection and further development. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Medium | High | Low | High |
Timedifferent | 1-4 h | 1-4 h | 30-60 min | 1-6 Wochen |
Participantsdifferent | 3-8 | 2-8 | 4-12 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Contradiction Statement, Inventive Principles, Solution Concepts | Idea pool, Theme clusters, Shortlist | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Root causeProblem solvingQualityIncident | InnovationProblem solvingContradictionsCreativity | BrainstormingIdeationCreativityWorkshopDivergence | QualityProblem solvingRoot cause |