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Selected:Fault IsolationFailure Mode and Effects AnalysisArchitecture Communication CanvasLASR (Lightweight Approach for Software Reviews)
| Criterion |  Engineering Fault Isolation |  Operations Failure Mode and Effects Analysis |  Architecture Architecture Communication Canvas |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
Purposedifferent | In technical failures, the visible symptom often gets mixed up with the actual cause. Fault Isolation narrows the fault space and progressively reduces which part of the system is truly affected. | For a process, product, or service with noticeable failure risks, the method assesses possible failure modes in advance. It directs attention to combinations of occurrence, effect, and detectability. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. | 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 | High | Medium | Medium |
Timedifferent | 30-180 min | 2-6 h | 60-120 min | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 1-6 | 3-10 | 2-8 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | FMEA Table, Risk Priority, Mitigation Actions | Communication Canvas, Stakeholder Messages, Architecture Communication 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 | TroubleshootingDiagnosisEngineering | RiskQualityOperationsRoot cause | ArchitectureCommunicationStakeholdersCanvas | ArchitectureQualityRiskAssessmentLean |