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Selected:ARID (Active Reviews for Intermediate Designs)A3 Problem SolvingGemba WalkLASR (Lightweight Approach for Software Reviews)
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations A3 Problem Solving |  Operations Gemba Walk |  Architecture LASR (Lightweight Approach for Software Reviews) |
|---|---|---|---|---|
Purposedifferent | ARID examines how well developers can work with a technical design. It focuses on a part of the system that can still be revised, between the architecture overview and the detailed specification. | 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. | 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. |
Complexitydifferent | Medium | Medium | Low | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 45-90 min | 30-120 min | 3–4 h for initial assessment; preparation and deeper analysis additional |
Participantsdifferent | Designers, developers as users, and facilitation | 2-5 | 2-6 | 1 or a small team; particularly suitable for 3–4 people |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | A3 Report, Action Plan, Root Cause Analysis | 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 |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | LeanProblem solvingCoachingOperations | LeanObservationProcessOperations | ArchitectureQualityRiskAssessmentLean |