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| Criterion |  Delivery Communication Plan |  Product Discovery Solution Interview |  Architecture ARID (Active Reviews for Intermediate Designs) |  Architecture C4 Model |
|---|---|---|---|---|
Purposedifferent | When many people need to be informed in parallel and messages would otherwise arrive unevenly or too late, a Communication Plan orders communication reliably. Channels, audiences, and cadences interlock so important information doesn't get lost. | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | 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 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. |
Complexitydifferent | Low | Medium | Medium | Low |
Timedifferent | 45-90 min | 30-60 min je Interview | 2–4 h review as a planning range; preparation and evaluation additional | 1-4 h |
Participantsdifferent | 2-6 | 5-10 Interviews | Designers, developers as users, and facilitation | 1-5 |
Formatsame | Workshop + async | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Communication Plan, Channel Matrix, Message Cadence | Solution Feedback, Objection List, Validation Notes | Prioritized development tasks, Jointly produced code or pseudocode, Observed difficulties and open design questions, Proposed design revisions | Context Diagram, Container Diagram, Component Diagram |
Tagsno overlap | CommunicationStakeholdersDeliveryPlanning | ValidationInterviewsPrototype | ArchitectureEngineeringFeedbackValidationTasks | ArchitectureCommunicationVisualization |