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| Criterion |  Decision Making Risk Matrix |  Operations Barrier Analysis |  Operations 5 Whys |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
Purposedifferent | When a project faces many possible disruptions, it quickly becomes unclear which risks deserve attention first. It separates options, evaluation criteria, and open risks. The result is captured as a Risk Matrix and a Top Risk List. | 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. | For a single, hard-to-explain deviation, the method exposes the causal chain behind the visible symptom. It keeps the cause open until a controllable condition emerges instead of a mere description. | 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 | Low | Medium | Low | Medium |
Timedifferent | 30-60 min | 2-4 h | 15-30 min | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 3-10 | 2-6 | 2-6 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Risk Matrix, Top Risk List | Barrier Inventory, Failure Analysis per Barrier, Action Backlog | Root cause notes, Countermeasures | 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 | RiskDecisionPrioritizationAssessment | Root causeSafetyIncident | Root causeIncidentLeanProblem solving | ArchitectureQualityRiskAssessmentLean |