Configuring the Non-Central Advanced Adapter Engine
In addition to the central Advanced Adapter Engine, non-central Advanced Adapter Engines can be installed on an SAP NetWeaver AS for Java without Integration Engines. There may be any number of non-central Advanced Adapter Engines, each associated with exactly one Integration Server with which the Advanced Adapter Engine communicates using the XI protocol.
Basic installation is required after a non-central Advanced Adapter Engine (non-central AAE) has been installed. You can use a wizard to perform this basic configuration.
By default, user management for the non-central AAE still relies on AS ABAP-based user management of the Integration Server. That means, with regard to user management, there is still a coupling between both stacks.
You have the option to de-couple user management for a non-central AAE from AS ABAP. This option is referred to as local user management for non-central AAE .
More information: User Management for Non-Central AAE (PI-AE )
The Advanced Adapter Engine is simply referred to as Adapter Engine in the subsequent documentation.