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| Criterion |  Architecture Views and Beyond |  Operations 5 Whys |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Root Cause Analysis |
|---|---|---|---|---|
Purposedifferent | Views and Beyond organizes architecture into several views so no single diagram has to do everything at once. This makes it possible to choose the representation that fits the stakeholder's question. | 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. | When a problem keeps recurring and the cause stays unclear, the method exposes the underlying mechanism. It separates symptom, guess, and robust explanation from one another. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 1-3 Tage | 15-30 min | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-4 h |
Participantsdifferent | 1-4 | 2-6 | 1 or a small team; particularly suitable for 3–4 people | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Architecture Views, Cross-view Notes, Rationale | 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 | Problem Statement, Cause Hypotheses, Confirmed Causes, Action Plan |
Tagsno overlap | DocumentationStakeholdersArchitecture | Root causeIncidentLeanProblem solving | ArchitectureQualityRiskAssessmentLean | Root causeProblem solvingQualityIncident |