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Selected:Fault IsolationLASR (Lightweight Approach for Software Reviews)RAID LogArchitecture Decision Record
| Criterion |  Engineering Fault Isolation |  Architecture LASR (Lightweight Approach for Software Reviews) |  Delivery RAID Log |  Architecture Architecture Decision Record |
|---|---|---|---|---|
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. | 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. | Helps clarify scope, sequence, and delivery flow in concrete terms. It makes work, boundaries, and order steerable. The result is captured as a RAID Log and a source for status reporting. | An ADR permanently records an architecture decision with context, trade-offs, and consequence. It creates continuity for later changes because the decision path stays traceable. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-180 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 30 min Setup, dann laufend | 15-45 min |
Participantsdifferent | 1-6 | 1 or a small team; particularly suitable for 3–4 people | 1-3 maintaining, briefing for everyone | 1-3 |
Formatdifferent | Workshop + async | Workshop + async | Async | Async |
Outputdifferent | Fault Isolation Map, Test Log, Excluded Hypotheses, Narrowed Fault Area | 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 | RAID Log, Status Report Source | ADR File, Decision Log, Rationale |
Tagsno overlap | TroubleshootingDiagnosisEngineering | ArchitectureQualityRiskAssessmentLean | RiskTrackingStakeholdersGovernance | ArchitectureRationaleDocumentationGovernance |