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Selected:Architecture Decision RecordLean StartupLASR (Lightweight Approach for Software Reviews)arc42
| Criterion |  Architecture Architecture Decision Record |  Innovation Lean Startup |  Architecture LASR (Lightweight Approach for Software Reviews) |  Architecture arc42 |
|---|---|---|---|---|
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. | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | 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. | 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 | Low | Medium | Medium | Low |
Timedifferent | 15-45 min | Wochen bis Monate je Lernzyklus | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-2 Tage |
Participantsdifferent | 1-3 | 2-8 | 1 or a small team; particularly suitable for 3–4 people | 1-4 |
Formatdifferent | Async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | ADR File, Decision Log, Rationale | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | 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 | Architecture Document, Context View, Runtime View, Deployment View |
Tagsno overlap | ArchitectureRationaleDocumentationGovernance | LeanStartupValidationMVP | ArchitectureQualityRiskAssessmentLean | ArchitectureDocumentationCommunication |