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Selected:Gemba WalkATAM (Architecture Tradeoff Analysis Method)Lean StartupLASR (Lightweight Approach for Software Reviews)
| Criterion |  Operations Gemba Walk |  Architecture ATAM (Architecture Tradeoff Analysis Method) |  Innovation Lean Startup |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
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. | 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. | 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. |
Complexitydifferent | Low | High | Medium | Medium |
Timedifferent | 30-120 min | Several meetings plus preparation and analysis; total effort depends on scope | Wochen bis Monate je Lernzyklus | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 2-6 | Evaluation team, architects, and relevant stakeholders | 2-8 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Prioritized quality scenarios in a utility tree, Architecture risks with reasoning and assumptions, Sensitivity and trade-off points, Findings report with open investigations | 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 |
Tagsno overlap | LeanObservationProcessOperations | ArchitectureQualityRiskTradeoffsStakeholders | LeanStartupValidationMVP | ArchitectureQualityRiskAssessmentLean |