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Selected:Fault Isolation5-Minuten VC-CheckARID (Active Reviews for Intermediate Designs)Hypothesis-Driven Troubleshooting
| Criterion |  Engineering Fault Isolation |  Business Strategy 5-Minuten VC-Check |  Architecture ARID (Active Reviews for Intermediate Designs) |  Engineering Hypothesis-Driven Troubleshooting |
|---|---|---|---|---|
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. | The 5-Minute VC Check clarifies opportunities and strategic options at the earliest idea stage. It compares problem quality, customer willingness to pay, alternatives, differentiation, and market potential, and captures the result as a VC-check note, go/sharpen/park decision, and risk 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. | 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 | Medium | Low | Medium | Medium |
Timedifferent | 30-180 min | 5-15 min | 2–4 h review as a planning range; preparation and evaluation additional | 30-240 min |
Participantsdifferent | 1-6 | 1-5 | Designers, developers as users, and facilitation | 1-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary |
Tagsno overlap | TroubleshootingDiagnosisEngineering | StartupValidationCompetition | ArchitectureEngineeringFeedbackValidationTasks | TroubleshootingProblem solvingDiagnosis |