An Application Arbortext PE is custom code that runs in an Sous-processus Arbortext PE. An application is invoked by the Arbortext PE Request Manager in response to an HTTP request that specifies a class or function name. The purpose of the application is to process the request, generate an appropriate HTTP response, and return the response to the Arbortext PE Request Manager for transmission to the requesting client.

An Application Arbortext PE can use any of the AOM interfaces and ACL functions within an Sous-processus Arbortext PE to manipulate documents. Because Sous-processus Arbortext PE run in batch mode, you can only use interfaces or functions that are not related to the graphical user interface.