Activiti is a workflow engine designed to model, execute, and manage business processes using the BPMN 2.0 standard. It functions as a Java-based framework that embeds process orchestration directly into enterprise applications and microservices to coordinate sequences of tasks and human-centric interactions.
The platform utilizes a persistent state machine to maintain the status of long-running workflows in a relational database, ensuring continuity across system restarts. It manages high-volume environments through optimistic concurrency control, which tracks versioning tokens to prevent data corruption during simultaneous process updates.
The engine supports complex orchestration by decoupling identity management from core execution, allowing for integration with existing enterprise security and directory services. It provides extensibility through pluggable service task integration, enabling the execution of custom business logic and external service calls at defined transition points within a workflow.
