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Selected:Failure Scenario AnalysisC4 Model8D Problem SolvingLASR (Lightweight Approach for Software Reviews)
| Criterion |  Engineering Failure Scenario Analysis |  Architecture C4 Model |  Operations 8D Problem Solving |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
Purposedifferent | In critical processes, it is not enough to plan only for the normal case. Failure Scenario Analysis looks at the path into failure and shows which failures, chains, and control gaps cause the most damage. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. | 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 | Medium | Low | High | Medium |
Timedifferent | 1-3 h | 1-4 h | 1-6 Wochen | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 3-8 | 1-5 | 4-10 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Failure Scenarios, Risk Notes, Control Gaps, Test and Response Actions | Context Diagram, Container Diagram, Component Diagram | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan | 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 | FailureResilienceRisk | ArchitectureCommunicationVisualization | QualityProblem solvingRoot cause | ArchitectureQualityRiskAssessmentLean |