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Selected:Soft Systems MethodologyLASR (Lightweight Approach for Software Reviews)Architecture Decision Recordarc42
| Criterion |  Systems Thinking Soft Systems Methodology |  Architecture LASR (Lightweight Approach for Software Reviews) |  Architecture Architecture Decision Record |  Architecture arc42 |
|---|---|---|---|---|
Purposedifferent | Soft Systems Methodology helps explore unclear or politically charged problems systematically. Instead of forcing a quick answer, the method builds a shared understanding of perspectives and room for action. | 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. | 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. | 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. |
Complexitydifferent | High | Medium | Low | Low |
Timedifferent | 0.5-3 Tage | 3–4 h for initial assessment; preparation and deeper analysis additional | 15-45 min | 1-2 Tage |
Participantsdifferent | 5-15 | 1 or a small team; particularly suitable for 3–4 people | 1-3 | 1-4 |
Formatdifferent | Workshop | Workshop + async | Async | Workshop + async |
Outputdifferent | Rich Picture, Root Definitions, Conceptual Models, Change Agenda | 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 | ADR File, Decision Log, Rationale | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | Soft systemsComplexitySensemakingSystems thinking | ArchitectureQualityRiskAssessmentLean | ArchitectureRationaleDocumentationGovernance | ArchitectureDocumentationCommunication |