e9d97721_ach_to_Collaborative_Web_Usage__Description
[Navigation Event] Forward [Description] 
When the user clicks on the forward button to fetch the page after the currently viewed page. As mentioned before, the history (user session) consists of a list of states and actions ordered in time. The problem of users going back and forth and branching to new links is irrelavant in this approach. As an advanced feature, the graph structure of the user session could be presented to the user for an improved history navigation. Besides implementation costs it must be noted, however, that many user's may have problems dealing with that complexity.
Towards an Integrated Approach to Collaborative Web Usage
Description