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| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations Gemba Walk |  Systems Thinking Future Reality Tree |
|---|---|---|---|
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. | 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. | A Future Reality Tree shows how desired actions are meant to lead to a better system state. The method checks whether a path of change holds together logically before time flows into implementation. |
Complexitydifferent | Medium | Low | High |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 30-120 min | 2-4 h |
Participantsdifferent | Designers, developers as users, and facilitation | 2-6 | 3-8 |
Formatdifferent | Workshop + async | Workshop | Workshop |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Observation Notes, Improvement Ideas | Future Reality Tree, Negative Branches, Assumption List, Improved Injections |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | LeanObservationProcessOperations | Theory of ConstraintsSystems thinkingChange |
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