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| Criterion |  Innovation Design Thinking |  Operations Fault Tree Analysis |  Innovation Design Sprint |  Operations Failure Mode and Effects Analysis |
|---|---|---|---|---|
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 critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. |
Complexitysame | High | High | High | High |
Timedifferent | 1 Tag bis mehrere Wochen | 2-6 h | 4-5 Tage | 2-6 h |
Participantsdifferent | 4-10 | 3-8 | 5-8 | 3-10 |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | Prototype, Test Findings, Decision Rationale | FMEA Table, Risk Priority, Mitigation Actions |
Tagsno overlap | InnovationPrototypeResearch | RiskRoot causeSafety | Design sprintPrototypeValidationInnovation | RiskQualityOperationsRoot cause |