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Selected:Architecture Decision RecordLASR (Lightweight Approach for Software Reviews)Fishbone Diagram5 Whys
| Criterion |  Architecture Architecture Decision Record |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Fishbone Diagram |  Operations 5 Whys |
|---|---|---|---|---|
Purposedifferent | 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. | 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. | When a problem has several possible contributing factors, the method sorts causes by cause areas. It prevents an initial hunch from blocking the view of other plausible drivers. | 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. |
Complexitydifferent | Low | Medium | Low | Low |
Timedifferent | 15-45 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 30-60 min | 15-30 min |
Participantsdifferent | 1-3 | 1 or a small team; particularly suitable for 3–4 people | 2-8 | 2-6 |
Formatdifferent | Async | Workshop + async | Workshop | Workshop |
Outputdifferent | ADR File, Decision Log, Rationale | 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 | Fishbone Diagram, Cause Categories, Investigation Backlog | Root cause notes, Countermeasures |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | ArchitectureQualityRiskAssessmentLean | Root causeQualityOperations | Root causeIncidentLeanProblem solving |