Using Data Fields and Parameters with Process User Tasks

Data fields and process parameters represent data that can be used as input to, or output from, steps in a business process. When mapped to a user task, process parameters represent the inputs and outputs of the user task. The parameters of a user task, in turn, can be mapped to controls on the form associated with that user task.

Note: The term parameter is used as follows:
Formal Parameters
 Parameters created at the process level of a process package represent interfaces for other processes that want to provide input to, or receive output from, the process that contains these parameters. They can be used, in turn, as input to, or output from, any user task in the business process by being added to the user task’s interface.
User Task Parameters
 User task parameters are properties of a specific user task within a business process, and they are mapped to data fields or process parameters using the Interface tab of the user task’s Properties View.