Features

The component SE Activity provides two operational mode:

• integration mode, that exposes a service-based API of the engine Activity. Several services are provided by the component to interact directly with the engine Activity,
• service mode to implement your services using orchestrations and workflows.

Integration mode

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Service mode

The mode "Service" of the SE Activity permits to implement your services using orchestration and/or process capabilities of Activity.

Orchestration

An orchestration is sequence of automatic service invocations, and can be modeled as a sequence of service tasks in a BPMN2 description. Creating an instance of such a process will start automatically the sequence of service invocations. As Activity supports BPMN2, it is possible to implement your orchestration as a process containing only service tasks:

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TODO

Process & Orchestration

The Activity Service-Engine allows to run process or service orchestration.

Each configuration of this component embeds an Activity process definition.
When such a configuration is deployed, a service with several operations is deployed providing following features:

• start a process instance of the process definition,
• complete the current task,
• retrieve process instances according to several criteria.

Available operations can be different from a version of the component to another version. See the user guide of the right version.

Concurrency

Several instance of the component can be deployed concurrently on Petals ESB. So, you are able to deploy each process definitions on several component instances to get high availability.