The BPMN model API enables easy extraction of information from an existing process definition, editing an existing process definition or creating a complete new one without manual XML parsing.

Note: Currently the BPMN model API does not support the entire BPMN 2.0 specification.The list of already supported BPMN 2.0 elements can be found in the source code package org.camunda.bpm.model.bpmn.instance.

原文: https://docs.camunda.org/manual/7.9/user-guide/model-api/bpmn-model-api/