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Selected:Value Chain AnalysisARID (Active Reviews for Intermediate Designs)Fault IsolationBusiness Model Canvas
| Criterion |  Business Strategy Value Chain Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Engineering Fault Isolation |  Business Strategy Business Model Canvas |
|---|---|---|---|---|
Purposedifferent | Value Chain Analysis shows where value is created, costs accrue, and differentiation becomes possible along the process. It compares strengths, risks, market logic, and courses of action. The result is captured as a value-chain map and lever list. | 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. | The Business Model Canvas condenses a business model to its key building blocks and assumptions. It makes variants quickly comparable and reveals gaps before validation or implementation begins. |
Complexitydifferent | High | Medium | Medium | Medium |
Timedifferent | Half day | 2–4 h review as a planning range; preparation and evaluation additional | 30-180 min | 1-2 h |
Participantsdifferent | 3-8 | Designers, developers as users, and facilitation | 1-6 | 2-8 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Value Chain Map, Lever List | 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 | Business Model Canvas, Assumption List, Business Hypotheses |
Tagsno overlap | StrategyBusiness modelDiagnosisAnalysis | ArchitectureEngineeringFeedbackValidationTasks | TroubleshootingDiagnosisEngineering | Business modelStrategyValueInnovation |