Data Flow of a Workflow

The data flow of a workflow is the manner in which the workflow element input and output parameters bind to workflow variables as each element of the workflow runs. You define the data flow of a workflow by using schema element bindings.

When an element in the workflow schema runs, it requires data in the form of input parameters. It takes the data for its input parameters by binding to a workflow variables that you set when you create the workflow, or by binding to an variable that a preceding element in the workflow set when it ran.

The element processes the data, possibly transforms it, and generates the results of its run in the form of output parameters. The element binds its resulting output parameters to new workflow variables that it creates. Other elements in the schema can bind to these new workflow variables as their input parameters. The workflow can generate the variables as its output parameters at the end of its run.