You can use application elements in a parameter file to define different sets of parameters that the Data Integration Service applies to a mapping or workflow depending on which application runs.

The application element can contain project, folder, mapping or workflow elements. The following table describes the elements that the application element can contain:

Element Name	Description
project	Defines a project in the Model repository. Use a project element to locate a folder, mapping, or workflow that resides in the project.
folder	Defines a folder within a project. Use a folder element if objects are organized in multiple folders within the project. A folder element can contain a mapping or a workflow element, or another folder element.
mapping	Defines a mapping in the application that uses parameters. A mapping element contains one or more parameter elements that define parameter values for the mapping or for any non-reusable transformation, mapplet, or data object in the mapping that accepts parameters. You can specify the same mapping in different application elements to use different parameters depending on which application runs.

For example, you want the Data Integration Service to apply parameter values when you run mapping "MyMapping" in deployed application "MyApp." You do not want to use the parameter values when you run the mapping in any other application or when you run another mapping in project "MyProject." Define the parameters within the following elements: