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.

h2. Integration mode

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h2. 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:
{gliffy:name=activity_orchestration|align=center|border=false}


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