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Selected:ATAM (Architecture Tradeoff Analysis Method)After-Action ReviewLASR (Lightweight Approach for Software Reviews)
| Criterion |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Operations After-Action Review |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|
Purposedifferent | 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. | After missions or project phases with unclear outcomes, the method makes visible what actually happened and what can be learned from it. It separates course, effect, and causes so experience turns into solid improvement. | 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 | High | Low | Medium |
Timedifferent | Several meetings plus preparation and analysis; total effort depends on scope | 20-45 min | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | Evaluation team, architects, and relevant stakeholders | 3-12 | 1 or a small team; particularly suitable for 3–4 people |
Formatsame | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | Lessons learned, Action items, Event summary | 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 | ArchitectureQualityRiskTradeoffsStakeholders | LearningOperationsImprovement | ArchitectureQualityRiskAssessmentLean |
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