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Selected:ARID (Active Reviews for Intermediate Designs)Assumption MappingLean CanvasLASR (Lightweight Approach for Software Reviews)
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Product Discovery Assumption Mapping |  Product Strategy Lean Canvas |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
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. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. | 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. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 45-60 min | 45-90 min | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | Designers, developers as users, and facilitation | 2-8 | 1-6 | 1 or a small team; particularly suitable for 3–4 people |
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 | Assumption map, Test backlog, Risk ranking | Lean Canvas, Core Assumptions, Experiment Backlog | 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 |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | AssumptionsRiskExperimentsValidation | StartupLeanAssumptionsBusiness model | ArchitectureQualityRiskAssessmentLean |