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Selected:ARID (Active Reviews for Intermediate Designs)Double DiamondA3 Problem SolvingDesign Sprint
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Innovation Double Diamond |  Operations A3 Problem Solving |  Innovation Design Sprint |
|---|---|---|---|---|
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 complex problems with a fuzzy situation, the method cleanly separates search space and decision. It first creates breadth in understanding and then focus in elaboration. This brings open questions, problem definition, and solution path into a traceable movement. | 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 the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | Wochen bis Monate | 45-90 min | 4-5 Tage |
Participantsdifferent | Designers, developers as users, and facilitation | 3-12 | 2-5 | 5-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | A3 Report, Action Plan, Root Cause Analysis | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | ProcessDivergenceInnovation | LeanProblem solvingCoachingOperations | Design sprintPrototypeValidationInnovation |