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| Criterion |  Architecture arc42 |  Architecture LASR (Lightweight Approach for Software Reviews) |  Operations Runbook |  Operations A3 Problem Solving |
|---|---|---|---|---|
Purposedifferent | arc42 structures architecture knowledge so teams can document system, decisions, and risks consistently. The template builds a living understanding of the architecture instead of scattered notes. | 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. | For recurring operational tasks or incidents, the method keeps solid action logic ready. It reduces uncertainty when time pressure, role changes, or rare situations demand fast access. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. |
Complexitydifferent | Low | Medium | Low | Medium |
Timedifferent | 1-2 Tage | 3–4 h for initial assessment; preparation and deeper analysis additional | 20-60 min | 45-90 min |
Participantsdifferent | 1-4 | 1 or a small team; particularly suitable for 3–4 people | 1-4 | 2-5 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Architecture Document, Context View, Runtime View, Deployment View | 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 | Runbook, Checklist, Escalation Path | A3 Report, Action Plan, Root Cause Analysis |
Tagsno overlap | ArchitectureDocumentationCommunication | ArchitectureQualityRiskAssessmentLean | OperationsReliabilityDocumentation | LeanProblem solvingCoachingOperations |