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Selected:Lean CanvasSoftware Architecture CanvasAssumption MappingLASR (Lightweight Approach for Software Reviews)
| Criterion |  Product Strategy Lean Canvas |  Architecture Software Architecture Canvas |  Product Discovery Assumption Mapping |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
Purposedifferent | 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 Software Architecture Canvas reduces a system to the most important architecture decisions, constraints, and interfaces. It is useful when teams need a resilient overall picture quickly. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | 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. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 45-90 min | 1-2 h | 45-60 min | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 1-6 | 3-10 | 2-8 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Lean Canvas, Core Assumptions, Experiment Backlog | Architecture Canvas, Goals, Constraints, Quality Attributes | Assumption map, Test backlog, Risk ranking | 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 | StartupLeanAssumptionsBusiness model | CanvasArchitectureAlignmentWorkshop | AssumptionsRiskExperimentsValidation | ArchitectureQualityRiskAssessmentLean |