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Selected:ARID (Active Reviews for Intermediate Designs)A3 Problem SolvingDesign ThinkingDesign Sprint
| Criterion |  Architecture ARID (Active Reviews for Intermediate Designs) |  Operations A3 Problem Solving |  Innovation Design Thinking |  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 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. | For complex user problems with an uncertain cause, the method connects observation, interpretation, and experiment into a learning cycle. It keeps the focus on real needs and avoids premature solution language. This produces robust decisions for product and service. | 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 | High | High |
Timedifferent | 2–4 h review as a planning range; preparation and evaluation additional | 45-90 min | 1 Tag bis mehrere Wochen | 4-5 Tage |
Participantsdifferent | Designers, developers as users, and facilitation | 2-5 | 4-10 | 5-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Workshop |
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 | Problem Statement, Prototype, Test Learnings | Prototype, Test Findings, Decision Rationale |
Tagsno overlap | ArchitectureEngineeringFeedbackValidationTasks | LeanProblem solvingCoachingOperations | InnovationPrototypeResearch | Design sprintPrototypeValidationInnovation |