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Selected:MORT AnalysisFault Tree AnalysisLASR (Lightweight Approach for Software Reviews)Barrier Analysis
| Criterion |  Operations MORT Analysis |  Operations Fault Tree Analysis |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Barrier Analysis |
|---|---|---|---|---|
Purposedifferent | 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 critical top event with several possible triggers, the method logically models failure paths. It makes visible which combinations of conditions can lead to damage. | 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 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 | High | High | Medium | Medium |
Timedifferent | Mehrere Tage bis Wochen | 2-6 h | 3–4 h for initial assessment; preparation and deeper analysis additional | 2-4 h |
Participantsdifferent | 2-6 | 3-8 | 1 or a small team; particularly suitable for 3–4 people | 2-6 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | MORT Worksheets, Findings per Branch, Corrective Actions, Systemic Recommendations | Fault Tree, Critical Paths, Cause Hypotheses, Control 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 | Barrier Inventory, Failure Analysis per Barrier, Action Backlog |
Tagsno overlap | Root causeSafetySystemicIncident | RiskRoot causeSafety | ArchitectureQualityRiskAssessmentLean | Root causeSafetyIncident |