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Selected:ARID (Active Reviews for Intermediate Designs)Evaporating CloudA3 Problem SolvingAssumption Mapping
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Systems Thinking Evaporating Cloud |  Operations A3 Problem Solving |  Product Discovery Assumption Mapping |
|---|---|---|---|---|
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. | The method makes visible why two seemingly incompatible demands arise and which assumption must be tested to resolve the conflict. | 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 assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitysame | Medium | Medium | Medium | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 60-120 min | 45-90 min | 45-60 min |
Participantsdifferent | Designers, developers as users, and facilitation | 2-8 | 2-5 | 2-8 |
Formatdifferent | Workshop + async | Workshop | Workshop + async | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Conflict Cloud, Assumption List, Breakthrough Ideas, Next Experiments | A3 Report, Action Plan, Root Cause Analysis | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | Theory of ConstraintsAssumptionsSystems thinking | LeanProblem solvingCoachingOperations | AssumptionsRiskExperimentsValidation |