system deployment descriptor — provides a detailed description of the services in a system along with the channels that connect their ports. In this sense, a system descriptor plays the same role as the web.xml file in a Java web application. Most often, a system deployment descriptor is stored in a file called pxe-system.xml.

• The system deployment descriptor schema is packaged with the distribution in ./docs/schemas/ and available on-line.
• Generated documentation for the schema is available on-line.