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| Criterion |  Innovation Double Diamond |  Architecture C4 Model |  Operations A3 Problem Solving |  Architecture Architecture Communication Canvas |
|---|---|---|---|---|
Purposedifferent | 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. | The C4 Model makes a system legible across several resolution levels, from context down to code. It suits situations where different audiences need to understand the same architecture from different altitudes. | 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. | The Architecture Communication Canvas plans architecture communication so the right people receive the right message. The method turns technical complexity into deliberate communication design. |
Complexitydifferent | Medium | Low | Medium | Medium |
Timedifferent | Wochen bis Monate | 1-4 h | 45-90 min | 60-120 min |
Participantsdifferent | 3-12 | 1-5 | 2-5 | 2-8 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Problem Statement, Solution Options, Prototypes, Deliverables per Phase | Context Diagram, Container Diagram, Component Diagram | A3 Report, Action Plan, Root Cause Analysis | Communication Canvas, Stakeholder Messages, Architecture Communication Plan |
Tagsno overlap | ProcessDivergenceInnovation | ArchitectureCommunicationVisualization | LeanProblem solvingCoachingOperations | ArchitectureCommunicationStakeholdersCanvas |