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| Criterion |  Operations DMAIC |  Innovation TRIZ |  Operations Root Cause Tree Analysis |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | 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 a problem with several suspected causes, the method builds a causal structure instead of a mere list. It makes visible how causes connect and where the strongest points of leverage lie. | 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 | High | High | Medium | High |
Timedifferent | 2-12 Wochen | 1-4 h | 1-3 h | 1-6 Wochen |
Participantsdifferent | 3-10 | 2-8 | 2-8 | 4-10 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Contradiction Statement, Inventive Principles, Solution Concepts | Cause Tree, Evidence Notes, Countermeasures | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | Continuous improvementQualityProcess improvement | InnovationProblem solvingContradictionsCreativity | Root causeTreeIncidentQuality | QualityProblem solvingRoot cause |