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Selected:Gemba WalkLASR (Lightweight Approach for Software Reviews)Lean StartupATAM (Architecture Tradeoff Analysis Method)
| Criterion |  Operations Gemba Walk |  Architecture LASR (Lightweight Approach for Software Reviews) |  Innovation Lean Startup |  Architecture ATAM (Architecture Tradeoff Analysis Method) |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | 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 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. | ATAM helps teams weigh architecture decisions when quality goals compete. The team considers business goals, stakeholder expectations, and technical decisions together. The evaluation shows which risks need further investigation. |
Complexitydifferent | Low | Medium | Medium | High |
Timedifferent | 30-120 min | 3–4 h for initial assessment; preparation and deeper analysis additional | Wochen bis Monate je Lernzyklus | Several meetings plus preparation and analysis; total effort depends on scope |
Participantsdifferent | 2-6 | 1 or a small team; particularly suitable for 3–4 people | 2-8 | Evaluation team, architects, and relevant stakeholders |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | 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 | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations |
Tagsno overlap | LeanObservationProcessOperations | ArchitectureQualityRiskAssessmentLean | LeanStartupValidationMVP | ArchitectureQualityRiskTradeoffsStakeholders |