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Selected:LASR (Lightweight Approach for Software Reviews)Root Cause AnalysisSAAM (Software Architecture Analysis Method)
| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Root Cause Analysis |  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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. | 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 | Medium | High |
Timedifferent | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-4 h | Preparation, scenario analysis, and findings review; effort depends on scope |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | 3-8 | Architecture experts and stakeholders for scenarios and weighting |
Formatsame | 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 | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan | 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 |
Tags1 shared | ArchitectureQualityRiskAssessmentLean | Root causeProblem solvingQualityIncident | ArchitectureChangeAnalysisComparisonQuality |
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