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| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Engineering Fault Isolation |  Product Strategy Lean Canvas |  Business Strategy 5-Minuten VC-Check |
|---|---|---|---|---|
Purposedifferent | 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. | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | 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. |
Complexitydifferent | Medium | Medium | Medium | Low |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 30-180 min | 45-90 min | 5-15 min |
Participantsdifferent | Designers, developers as users, and facilitation | 1-6 | 1-6 | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 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 | Lean Canvas, Core Assumptions, Experiment Backlog | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | TroubleshootingDiagnosisEngineering | StartupLeanAssumptionsBusiness model | StartupValidationCompetition |