Basic Mapping Tasks
Basic mapping tasks are the tasks you perform to manage the pipeline contents and the values of variables in the pipeline. In the Pipeline view, you can perform the following basic mapping tasks:
Link variables to each other. You can copy the value of a variable in one service or document format to a variable in another service or document format.
Assign values to variables. You can hard code variable values or assign a default value to variables.
Drop variables from the pipeline. You can remove pipeline variables that are not used by subsequent services in a flow.
Add variables to the pipeline. You can add variables that were not declared as input or output parameters of the flow service. You can also add input and output variables for services that the flow service invokes (internally invoked services).