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Selected:LASR (Lightweight Approach for Software Reviews)Evaporating CloudCurrent Reality TreeATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  Systems Thinking Evaporating Cloud |  Systems Thinking Current Reality Tree |  Architecture ATAM (Architecture Tradeoff 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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | A Current Reality Tree condenses many symptoms into a few causal chains. The method makes visible which core problems drive several negative effects at once. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. |
Complexitydifferent | Medium | Medium | High | High |
Timedifferent | 3–4 h for initial assessment; preparation and deeper analysis additional | 60-120 min | 2-6 h | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | 2-8 | 3-8 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop | 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 | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | Current Reality Tree, Core Problems, Intervention Ideas | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | ArchitectureQualityRiskAssessmentLean | Theory of ConstraintsAssumptionsSystems thinking | Systems thinkingRoot causeConstraintsCausality | ArchitectureQualityRiskTradeoffsStakeholders |