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| Criterion |  Innovation Design Thinking |  Operations 5 Whys |  Architecture arc42 |
|---|---|---|---|
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 single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. |
Complexitydifferent | High | Low | Low |
Timedifferent | 1 Tag bis mehrere Wochen | 15-30 min | 1-2 Tage |
Participantsdifferent | 4-10 | 2-6 | 1-4 |
Formatdifferent | Workshop | Workshop | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Root cause notes, Countermeasures | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | InnovationPrototypeResearch | Root causeIncidentLeanProblem solving | ArchitectureDocumentationCommunication |
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