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Selected:Design ThinkingARID (Active Reviews for Intermediate Designs)Fault IsolationHypothesis-Driven Troubleshooting
| Criterion |  Innovation Design Thinking |  Architecture ARID (Active Reviews for Intermediate Designs) |  Engineering Fault Isolation |  Engineering Hypothesis-Driven Troubleshooting |
|---|---|---|---|---|
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. | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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. | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | 1 Tag bis mehrere Wochen | 2–4 h review as a planning range; preparation and evaluation additional | 30-180 min | 30-240 min |
Participantsdifferent | 4-10 | Designers, developers as users, and facilitation | 1-6 | 1-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Prototype, Test Learnings | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary |
Tagsno overlap | InnovationPrototypeResearch | ArchitectureEngineeringFeedbackValidationTasks | TroubleshootingDiagnosisEngineering | TroubleshootingProblem solvingDiagnosis |