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Selected:A3 Problem SolvingARID (Active Reviews for Intermediate Designs)5-Minuten VC-CheckLean Startup
| Criterion |  Operations A3 Problem Solving |  Architecture ARID (Active Reviews for Intermediate Designs) |  Business Strategy 5-Minuten VC-Check |  Innovation Lean Startup |
|---|---|---|---|---|
Purposedifferent | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | 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. | 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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 45-90 min | 2–4 h review as a planning range; preparation and evaluation additional | 5-15 min | Wochen bis Monate je Lernzyklus |
Participantsdifferent | 2-5 | Designers, developers as users, and facilitation | 1-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | A3 Report, Action Plan, Root Cause Analysis | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | VC-check note, Go/sharpen/park decision, Risk and assumption list, Next validation step | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision |
Tagsno overlap | LeanProblem solvingCoachingOperations | ArchitectureEngineeringFeedbackValidationTasks | StartupValidationCompetition | LeanStartupValidationMVP |