Abstract: A system for supporting collaborative activity in a network includes a storage component storing data related to the network and a model of the network; a processor that accesses the stored data and the model to process the data according to the model, where the stored data relates to the collaborative activity including user-defined data created by interaction of a user and the model, and context data related to the user, where the user-defined data and the context data, as metadata, are stored in the storage component; and a user interface, provided by the processor, that presents the user-defined data, the context data, and the model in a form readable by the user, the interface permitting the user to define a set of arbitrary domains, relate the user-defined data to the domains, and view relationships between the user-defined data and the context data, and the domains.

Abstract: A system for supporting collaborative activity in a network includes a storage component storing data related to the network and a model of the network; a processor that accesses the stored data and the model to process the data according to the model, where the stored data relates to the collaborative activity including user-defined data created by interaction of a user and the model, and context data related to the user, where the user-defined data and the context data, as metadata, are stored in the storage component; and a user interface, provided by the processor, that presents the user-defined data, the context data, and the model in a form readable by the user, the interface permitting the user to define a set of arbitrary domains, relate the user-defined data to the domains, and view relationships between the user-defined data and the context data, and the domains.

Abstract: A system for performing collaborative tasks which permits collaborators to determine the form of a model of the collaborative work, to modify the model in the course of the collaborative work, and to use the model to access information related to the collaborative work. A graphical user interface permits collaborators to view the model and the information accessible via the model in various ways as well as to modify the model and the information. The information related to the collaborative work includes documents, discussions, email, reminders, and alerts. In a disclosed embodiment of the system, the model is made up of model entities which belong to hierarchies. A model entity may be a member of more than one hierarchy and the different hierarchies are used to provide different views of the model.