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| Criterion |  Innovation Design Thinking |  Engineering Hypothesis-Driven Troubleshooting |  Innovation TRIZ |  Engineering Fault Isolation |
|---|---|---|---|---|
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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. |
Complexitydifferent | High | Medium | High | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 30-240 min | 1-4 h | 30-180 min |
Participantsdifferent | 4-10 | 1-6 | 2-8 | 1-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | Contradiction Statement, Inventive Principles, Solution Concepts | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area |
Tagsno overlap | InnovationPrototypeResearch | TroubleshootingProblem solvingDiagnosis | InnovationProblem solvingContradictionsCreativity | TroubleshootingDiagnosisEngineering |