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Selected:Hypothesis-Driven Troubleshooting5-Minuten VC-CheckARID (Active Reviews for Intermediate Designs)5 Whys
| Criterion |  Engineering Hypothesis-Driven Troubleshooting |  Business Strategy 5-Minuten VC-Check |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | When systems fail unexpectedly, spontaneous attempts often produce more noise than insight. Hypothesis-driven Troubleshooting translates symptoms into testable assumptions and makes troubleshooting learnable. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. |
Complexitydifferent | Medium | Low | Medium | Low |
Timedifferent | 30-240 min | 5-15 min | 2–4 h review as a planning range; preparation and evaluation additional | 15-30 min |
Participantsdifferent | 1-6 | 1-5 | Designers, developers as users, and facilitation | 2-6 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Hypothesis Log, Test Plan, Evidence Notes, Diagnosis Summary | 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 | Root cause notes, Countermeasures |
Tagsno overlap | TroubleshootingProblem solvingDiagnosis | StartupValidationCompetition | ArchitectureEngineeringFeedbackValidationTasks | Root causeIncidentLeanProblem solving |