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Selected:LASR (Lightweight Approach for Software Reviews)Fault Tree AnalysisMORT AnalysisBarrier Analysis
| Criterion |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Fault Tree Analysis |  Operations MORT Analysis |  Operations Barrier Analysis |
|---|---|---|---|---|
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. | For a critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | For a safety-relevant event or a system with high protection requirements, the method examines where controls failed. It exposes both technical and organizational gaps. | For a risk that can only be managed through multiple layers of protection, the method examines the effectiveness of each barrier. It shows where safeguards are missing, too weak, or fail under real conditions. |
Complexitydifferent | Medium | High | High | Medium |
Timedifferent | 3–4 h for initial assessment; preparation and deeper analysis additional | 2-6 h | Mehrere Tage bis Wochen | 2-4 h |
Participantsdifferent | 1 or a small team; particularly suitable for 3–4 people | 3-8 | 2-6 | 2-6 |
Formatsame | Workshop + async | 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 | Fault Tree, Critical Paths, Cause Hypotheses, Control Actions | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | ArchitectureQualityRiskAssessmentLean | RiskRoot causeSafety | Root causeSafetySystemicIncident | Root causeSafetyIncident |