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| Criterion |  Operations DMAIC |  Architecture LASR (Lightweight Approach for Software Reviews) |  Growth A/B Testing |  Operations PDCA Cycle |
|---|---|---|---|---|
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. | 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 two variants compete, discussions quickly decide by taste rather than effect. A/B Testing checks behavior under controlled conditions and separates real improvement from chance or expectation effects. | For an improvement that still has to prove itself in everyday work, the method runs it through small learning loops. It connects planning, checking, and standardization into a repeatable learning mode. |
Complexitydifferent | High | Medium | High | Low |
Timedifferent | 2-12 Wochen | 3–4 h for initial assessment; preparation and deeper analysis additional | 1-4 Wochen | 1 h bis mehrere Wochen |
Participantsdifferent | 3-10 | 1 or a small team; particularly suitable for 3–4 people | 1-6 | 1-8 |
Formatdifferent | Workshop + async | Workshop + async | Async | Workshop + async |
Outputdifferent | Project Charter, Measurement Plan, Cause Analysis, Control Plan | 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 | Experiment results, Decision log, Learning summary | PDCA Log, Experiment Plan, Learning Outcome, Standard Change |
Tagsno overlap | Continuous improvementQualityProcess improvement | ArchitectureQualityRiskAssessmentLean | ExperimentsGrowthAnalyticsValidation | Continuous improvementLeanExperiments |