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| Criterion |  Operations 8D Problem Solving |  Operations Root Cause Analysis |  Innovation Morphological Analysis |  Innovation TRIZ |
|---|---|---|---|---|
Purposedifferent | 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. | 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 search for solutions with many degrees of freedom, a grid emerges for systematic combinations. The method separates features, variants, and exclusion criteria, so the space gets explored deliberately. | 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 | High | Medium | Medium | High |
Timedifferent | 1-6 Wochen | 1-4 h | 1-3 h | 1-4 h |
Participantsdifferent | 4-10 | 3-8 | 2-8 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | Morphological Box, Concept Combinations, Idea Shortlist | Contradiction Statement, Inventive Principles, Solution Concepts |
Tagsno overlap | QualityProblem solvingRoot cause | Root causeProblem solvingQualityIncident | IdeationInnovationCreativity | InnovationProblem solvingContradictionsCreativity |