Whenever a user accesses a site that uses the Personalization module, two different mechanisms are used to track the user’s actions:
A session is created for the user, and is maintained either through a cookie or through URL rewriting.
The user is associated with a profile.
The Session Tracking chapter of the ATG Platform Programming Guide discusses session creation and tracking. This section describes methods for tracking users by associating them with profiles. It discusses the following:
methods for tracking guest users
methods for tracking permanent users
how to use cookies to maintain information about users