Suggest an editImprove this articleRefine the answer for “What is a domain event (an event in the domain)?”. Your changes go to moderation before they’re published.Approval requiredContentWhat you’re changing🇺🇸EN🇺🇦UAPreviewTitle (EN)Short answer (EN)A **Domain Event** is a fact that happened in the domain that has business meaning and can trigger other actions: an event is always in the past tense (`OrderPlaced`, `PaymentFailed`) and describes a business fact, not a technical action. **Key point:** domain events make it possible to build loosely coupled, reactive modules where logic is extended without changing the core.Shown above the full answer for quick recall.Answer (EN)ImageA **Domain Event** is a **fact that happened in the domain** that has business meaning and can trigger other actions. Characteristics: 1. **Past tense**: the event has already happened (`OrderPlaced`, `PaymentFailed`). 2. **Independence**: the event describes a business fact, not a technical action. 3. **Carrying context**: other parts of the system can react to it without knowing the details of its source. Example: After `OrderPaid`, delivery can be triggered automatically, or bonuses can be credited. **The point:** domain events make it possible to build **loosely coupled, reactive modules** where logic is extended without changing the core.For the reviewerNote to the moderator (optional)Visible only to the moderator. Helps review go faster.