eventmodeling-identifying-inputs

To map UI actions to domain commands in event modeling, you catalog user interactions by attributing each system command to a specific role or actor. This ensures accurate traceability between user inputs and the resulting domain event stream.

User-initiated UI actions are direct interactions mapped to specific roles, while processor triggers are reactive, event-driven automations. Distinguishing them in event modeling resolves ambiguity by ensuring accurate role attribution and system traceability for background webhooks.

To validate preconditions for domain commands, you define the state-based context and input validation rules during the transition from storyboarding to technical specification. This ensures every system command is validated before generating a domain event.

Yes, event modeling supports processor logic modeling by documenting the reactive nature of processors, including todo-list patterns and event-driven automation. This ensures background webhooks and automated system processes are fully accounted for in the command catalog.

You should catalog system commands using domain-driven design during the design phase of a complex system. This ensures every button click and background webhook is accounted for, validated, and mapped to the correct domain event.

Your event modeling storyboard lacks traceability because system commands are not properly attributed to specific roles or actors. Mapping UI actions and processor triggers to specific domain roles and events establishes complete traceability across the system.