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Selected:ARID (Active Reviews for Intermediate Designs)Eisenhower MatrixLean CanvasAssumption Mapping
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Decision Making Eisenhower Matrix |  Product Strategy Lean Canvas |  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. | It separates true priorities from noise so it becomes clear what should be done now, scheduled, delegated, or dropped. | When an early product bet still has too many open points, it brings target group, problem, and assumptions into a single view. It condenses the idea so core risks become nameable. | When assumptions still sit unordered in the room, it weighs uncertainty against leverage. It makes visible which hypotheses should be checked first. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 15-30 min | 45-90 min | 45-60 min |
Participantsdifferent | Designers, developers as users, and facilitation | 1-6 | 1-6 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Eisenhower Matrix, Action List, Delegation Notes | Lean Canvas, Core Assumptions, Experiment Backlog | Assumption map, Test backlog, Risk ranking |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | PrioritizationFocusTasks | StartupLeanAssumptionsBusiness model | AssumptionsRiskExperimentsValidation |