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| Criterion |  Architecture C4 Model |  Operations Gemba Walk |  Operations Standard Work Analysis |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
Purposedifferent | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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. | When the same task is done differently depending on the person, the method exposes the reliable core. It creates comparability without unnecessarily choking off needed latitude. | 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 | Low | Medium | Medium |
Timedifferent | 1-4 h | 30-120 min | 1-3 h | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | 1-5 | 2-6 | 2-6 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop + async | Workshop | Workshop | Workshop + async |
Outputdifferent | Context Diagram, Container Diagram, Component Diagram | Observation Notes, Improvement Ideas | Standard Work Sheet, Deviation List, Improved Standard, Training Needs | 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 | ArchitectureCommunicationVisualization | LeanObservationProcessOperations | LeanProcessQuality | ArchitectureQualityRiskAssessmentLean |