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Selected:ARID (Active Reviews for Intermediate Designs)LASR (Lightweight Approach for Software Reviews)Lean StartupAssumption Mapping
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Architecture LASR (Lightweight Approach for Software Reviews) |  Innovation Lean Startup |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | LASR helps development teams identify where their software falls short of important quality goals and which improvements to consider. A small group with existing system knowledge can make an initial assessment and investigate open questions in more detail. | 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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 3–4 h for initial assessment; preparation and deeper analysis additional | Wochen bis Monate je Lernzyklus | 45-60 min |
Participantsdifferent | Designers, developers as users, and facilitation | 1 or a small team; particularly suitable for 3–4 people | 2-8 | 2-8 |
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 | Lean Mission Statement describing the software’s purpose, Prioritized quality goals and evaluation criteria, Risks and estimated gaps against quality goals, More closely examined findings and open checks | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | ArchitectureQualityRiskAssessmentLean | LeanStartupValidationMVP | AssumptionsRiskExperimentsValidation |