eventmodeling-designing-event-models

Designs event-sourced domain models. Maps business processes to immutable events and state projections. Events are the source of truth; state is derived from events for command validation. Use when designing event streaming architectures from domain analysis. Do not use for: brainstorming events from scratch (use eventmodeling-brainstorming-events), optimizing stream sizing or snapshotting (use eventmodeling-optimizing-stream-design), or translating external system events (use eventmodeling-translating-external-events).