You use IEP Module Projects with the Service-Oriented-Architecture/Composite-Application project system to generate service engine deployment assembly for event processor deployment.
To create a new IEP Project:
The IDE creates the source file under the Source Packages, opens the source file in the IEP design view, and opens the IEP Palette
You can then drag operators from the Palette to the Design view.
After you have saved the project, you can create and deploy a composite application that contains the IEP project.