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Selected:Causal Factor AnalysisLASR (Lightweight Approach for Software Reviews)Current Reality TreeATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Operations Causal Factor Analysis |  Architecture LASR (Lightweight Approach for Software Reviews) |  Systems Thinking Current Reality Tree |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | 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. | 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 | High | Medium | High | High |
Timedifferent | 2-6 h | 3–4 h for initial assessment; preparation and deeper analysis additional | 2-6 h | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 3-10 | 1 or a small team; particularly suitable for 3–4 people | 3-8 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | 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 | 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 | CausalityIncidentRoot causeTimeline | ArchitectureQualityRiskAssessmentLean | Systems thinkingRoot causeConstraintsCausality | ArchitectureQualityRiskTradeoffsStakeholders |