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Selected:Value Chain AnalysisARID (Active Reviews for Intermediate Designs)GAP AnalysisFault Isolation
| Criterion |  Business Strategy Value Chain Analysis |  Architecture ARID (Active Reviews for Intermediate Designs) |  Business Strategy GAP Analysis |  Engineering Fault Isolation |
|---|---|---|---|---|
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. | GAP Analysis compares the current state with a target picture and makes the distance manageable. It becomes useful when, ahead of new initiatives, it must become clear which capabilities, processes, or resources are missing. | 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 | Medium | Medium |
Timedifferent | Half day | 2–4 h review as a planning range; preparation and evaluation additional | 1-3 h | 30-180 min |
Participantsdifferent | 3-8 | Designers, developers as users, and facilitation | 2-8 | 1-6 |
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 | Gap Matrix, Action Plan, Risk Notes | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area |
Tagsno overlap | StrategyBusiness modelDiagnosisAnalysis | ArchitectureEngineeringFeedbackValidationTasks | StrategyAnalysisPlanning | TroubleshootingDiagnosisEngineering |