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| Criterion |  Architecture Risk Storming |  Product Discovery Assumption Mapping |  Operations 5 Whys |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
Purposedifferent | Helps clarify architecture context, options, and consequences in concrete terms. It organizes technical context, alternatives, and consequences. The result is captured as an Annotated Diagram, a Prioritized Risk List, and an Action Backlog. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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 | Low | Medium | Low | Medium |
Timedifferent | 60-90 min | 45-60 min | 15-30 min | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 4-12 | 2-8 | 2-6 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Annotated Diagram, Prioritized Risk List, Action Backlog | Assumption map, Test backlog, Risk ranking | Root cause notes, Countermeasures | 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 | RiskArchitectureWorkshopValidation | AssumptionsRiskExperimentsValidation | Root causeIncidentLeanProblem solving | ArchitectureQualityRiskAssessmentLean |