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| Criterion |  Innovation Design Thinking |  Operations Root Cause Tree Analysis |  Operations A3 Problem Solving |
|---|---|---|---|
Purposedifferent | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | High | Medium | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 1-3 h | 45-90 min |
Participantsdifferent | 4-10 | 2-8 | 2-5 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Cause Tree, Evidence Notes, Countermeasures | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | InnovationPrototypeResearch | Root causeTreeIncidentQuality | LeanProblem solvingCoachingOperations |
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