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Selected:LASR (Lightweight Approach for Software Reviews)5 WhysSAAM (Software Architecture Analysis Method)
| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations 5 Whys |  Architecture SAAM (Software Architecture Analysis Method) |
|---|---|---|---|
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. | 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. | 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. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 3–4 h for initial assessment; preparation and deeper analysis additional | 15-30 min | Preparation, scenario analysis, and findings review; effort depends on scope |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | 2-6 | Architecture experts and stakeholders for scenarios and weighting |
Formatdifferent | Workshop + async | Workshop | 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 | Root cause notes, Countermeasures | 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 |
Tagsno overlap | ArchitectureQualityRiskAssessmentLean | Root causeIncidentLeanProblem solving | ArchitectureChangeAnalysisComparisonQuality |
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