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| Criterion |  Engineering Fault Isolation |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Strategy KPI Tree |  Engineering Goal Question Metric |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | When metrics across the organization drift apart, it arranges drivers and effects under one shared logic. It connects customer value, product logic, and decision priorities. The result is captured as a KPI tree and owner list. | Helps clarify technical problems, hypotheses, and next steps in concrete terms. It breaks a technical problem into testable parts. The result is captured as a GQM table and metric briefs. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 30-180 min | 2–4 h review as a planning range; preparation and evaluation additional | 90-180 min initial, dann laufend | 90-180 min |
Participantsdifferent | 1-6 | Designers, developers as users, and facilitation | 3-8 | 3-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | KPI Tree, Owner List | GQM Table, Metric Profiles |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ArchitectureEngineeringFeedbackValidationTasks | MetricsStrategyAlignmentMeasurement | MetricsMeasurementEngineeringAlignment |