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Selected:LASR (Lightweight Approach for Software Reviews)ATAM (Architecture Tradeoff Analysis Method)PERT EstimationDot Estimation
| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Decision Making PERT Estimation |  Facilitation Dot Estimation |
|---|---|---|---|---|
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. | 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. | On complex initiatives, a plain average tends to understate just how uncertain the outcome really is. It separates options, evaluation criteria, and open risks. The result is captured as a PERT Estimate, Expected Value, and Risk Notes. | When size or effort can only be estimated roughly, Dot Estimation condenses the group's experience into a quick range. It turns individual contributions into a visible selection. The result is captured as an Effort Heatmap, Risk Signals, and Discussion Targets. |
Complexitydifferent | Medium | High | Medium | Low |
Timedifferent | 3–4 h for initial assessment; preparation and deeper analysis additional | Several meetings plus preparation and analysis; total effort depends on scope | 15-45 min | 5-20 min |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | Evaluation team, architects, and relevant stakeholders | 1-8 | 3-20 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
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 | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | PERT Estimate, Expected Value, Risk Notes | Effort Heatmap, Risk Signals, Discussion Targets |
Tags1 shared | ArchitectureQualityRiskAssessmentLean | ArchitectureQualityRiskTradeoffsStakeholders | EstimationUncertaintyRisk | EstimationEffortRisk |