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Selected:LASR (Lightweight Approach for Software Reviews)Lean CanvasSAAM (Software Architecture Analysis Method)Assumption Mapping
| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  Product Strategy Lean Canvas |  Architecture SAAM (Software Architecture Analysis Method) |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | SAAM helps teams judge an architecture’s suitability for selected tasks and changes. It is particularly useful for examining modifiability and comparing architecture alternatives with clear reasoning. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Medium | High | Medium |
Timedifferent | 3–4 h for initial assessment; preparation and deeper analysis additional | 45-90 min | Preparation, scenario analysis, and findings review; effort depends on scope | 45-60 min |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | 1-6 | Architecture experts and stakeholders for scenarios and weighting | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | 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 | Lean Canvas, Core Assumptions, Experiment Backlog | Domain functions mapped to components and connections, Quality attributes and evaluation criteria, Typical tasks and their effects on the architecture, Reasoned evaluation or comparison of alternatives | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ArchitectureQualityRiskAssessmentLean | StartupLeanAssumptionsBusiness model | ArchitectureChangeAnalysisComparisonQuality | AssumptionsRiskExperimentsValidation |