Group Adaptive System is an adaptive environment for collaborative navigation on the World Wide Web.
The system's goal is enable effective sharing of information of information gathered through web navigation and promote knowledge exchange among people forming a group.
GAS puts together the resources discovered by group particiapns and helps them to create a consistent information space around their interest topics.
Group participants can move in the Web space and access pages by using a "common information space" consisting of a "Group View" section elaborated on the bases of the group participants' interactions and a "Related Pages" section elaborated using a CLEVER-based model (see. GAS papers for more information).