Every Sottoprocesso Arbortext PE contains a Java object called the Applicazione Arbortext PE Context. The Applicazione Arbortext PE Context is responsible for loading and executing Applicazione Arbortext PEs upon request from the Arbortext PE Request Manager. The Applicazione Arbortext PE Context starts when the Sottoprocesso Arbortext PE launches. Before the Arbortext PE Request Manager asks an Sottoprocesso Arbortext PE to run an Applicazione Arbortext PE, the Arbortext PE Request Manager passes parameter information to the Applicazione Arbortext PE Context. The parameter information includes all global parameters defined in e3config.xml, plus all of the parameters defined for the Sottoprocesso Arbortext PE pool in which the Sottoprocesso Arbortext PE will run.

The Applicazione Arbortext PE Context stores the parameter information it receives from the Arbortext PE Request Manager in an object called the Application Configuration. An instance of this object, which implements the Java class com.arbortext.e3.E3ApplicationConfig, is passed to the init method of every Applicazione Arbortext PE written in Java. The information is also available to JavaScript, VBScript, and ACL applications, as described in later sections.