Workflow Service.

          Workflow Definition Data Object

          Workflow Definition Deployment

          Workflow Instance Data Object Represents an "in-flight" workflow.

          Workflow Node Data Object Represents a Node within the Workflow Definition.

          Workflow Path Data Object Represents a path within an "in-flight" workflow instance.

          Workflow Task Data Object Represents a human-oriented task within an "in-flight" workflow instance

          Workflow Task Definition Data Object.

          Workflow Task Query Provides support for setting predicates and order by.

          Workflow Task State Represents the high-level state of Workflow Task (in relation to "in-flight" workflow instance).

          Workflow Transition.