name: Debezium Vocabulary
description: >-
  Shared vocabulary of terms used across Debezium's change-data-capture
  platform and its Kafka Connect-based connectors.
terms:
  - term: Change Data Capture (CDC)
    definition: >-
      Capturing row-level changes (inserts, updates, deletes) from a
      database and emitting them as events.
  - term: Connector
    definition: >-
      A Debezium component, deployed inside Kafka Connect, that reads a
      database transaction log and emits change events.
  - term: Task
    definition: >-
      A unit of work assigned by Kafka Connect to a worker for executing
      part of a connector's job.
  - term: Source Record
    definition: >-
      A change event emitted by a Debezium connector containing before,
      after, source metadata, operation, and timestamp.
  - term: Operation (op)
    definition: >-
      Indicates the type of change - "c" (create), "u" (update), "d"
      (delete), "r" (snapshot read), or "t" (truncate).
  - term: Snapshot
    definition: >-
      An initial consistent read of existing data in a database, performed
      before streaming new changes.
  - term: Outbox Pattern
    definition: >-
      A microservices integration pattern where domain events are written
      to an outbox table and streamed by Debezium for reliable delivery.
  - term: Topic
    definition: >-
      A Kafka topic into which Debezium publishes change events for a
      specific table or stream.
  - term: Offset
    definition: >-
      The position in the source database log that a connector has
      consumed up to.
  - term: Debezium Server
    definition: >-
      A standalone runtime that streams Debezium change events to message
      brokers other than Kafka (Pulsar, Pub/Sub, Kinesis, etc.).