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| Criterion |  Operations DMAIC |  Architecture arc42 |  Operations A3 Problem Solving |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
Purposedifferent | For a process problem with fluctuating performance, the method brings analysis and improvement into a disciplined sequence. It creates a framework in which numbers, causes, and control come together. | 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. | 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. | 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. |
Complexitydifferent | High | Low | Medium | Medium |
Timedifferent | 2-12 Wochen | 1-2 Tage | 45-90 min | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 3-10 | 1-4 | 2-5 | 1 or a small team; particularly suitable for 3–4 people |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | Architecture Document, Context View, Runtime View, Deployment View | A3 Report, Action Plan, Root Cause Analysis | 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 |
Tagsno overlap | Continuous improvementQualityProcess improvement | ArchitectureDocumentationCommunication | LeanProblem solvingCoachingOperations | ArchitectureQualityRiskAssessmentLean |