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| Criterion |  Agile Affinity Estimation |  Agile Story Splitting |  Architecture C4 Model |  Delivery Communication Plan |
|---|---|---|---|---|
Purposedifferent | When many tasks need to be classified quickly, it sorts them by perceived effort and similarity. It reduces the effort of fine-grained estimation for large volumes. | When a story becomes too large for a clean flow, it breaks scope down along value and risk. It shapes the work into a form that ships earlier and is easier to verify. | 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. | 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. |
Complexitydifferent | Medium | Medium | Low | Low |
Timedifferent | 30-90 min | 30-60 min | 1-4 h | 45-90 min |
Participantsdifferent | 3-12 | 2-6 | 1-5 | 2-6 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Affinity Size Map, Grouped Estimates, Unclear Items | Smaller Stories, Acceptance Criteria, Split Rationale | Context Diagram, Container Diagram, Component Diagram | Communication Plan, Channel Matrix, Message Cadence |
Tagsno overlap | EstimationBacklogRelative sizing | BacklogIterationDelivery | ArchitectureCommunicationVisualization | CommunicationStakeholdersDeliveryPlanning |