Beyond the chalkboard: computer support for collaboration and problem solving in meetings
Communications of the ACM
Petri-net-based hypertext: document structure with browsing semantics
ACM Transactions on Information Systems (TOIS)
Groupware: some issues and experiences
Communications of the ACM
Design for conversation: lessons from Cognoter
International Journal of Man-Machine Studies - Computer-supported cooperative work and groupware. Part 1
Access control for collaborative environments
CSCW '92 Proceedings of the 1992 ACM conference on Computer-supported cooperative work
A high-level and flexible framework for implementing multiuser user interfaces
ACM Transactions on Information Systems (TOIS) - Special issue on user interface software and technology
The Dexter hypertext reference model
Communications of the ACM
The Rendezvous architecture and language for constructing multiuser applications
ACM Transactions on Computer-Human Interaction (TOCHI)
Interpreted collaboration protocols and their use in groupware prototyping
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
Enhanced graph models in the Web: multi-client, multi-head, multi-tail browsing
Proceedings of the fifth international World Wide Web conference on Computer networks and ISDN systems
Petri Net Theory and the Modeling of Systems
Petri Net Theory and the Modeling of Systems
The World Wide Web: what cost simplicity?
HYPERTEXT '97 Proceedings of the eighth ACM conference on Hypertext
Open paper: caT: adapting and updating the trellis hypertext model
The New Review of Hypermedia and Multimedia
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The MMM (Multi-head, Multi-tail, Multi-client) browsing project is a continuing effort to bring stronger graph semantics to the World Wide Web, thereby increasing the Web's usefulness for collaboration and education. The first modified browser provided facilities for links with multiple heads and tails, thereby giving the content author the ability to direct concurrent and synchronized browsing streams. The Web author can direct the paths of his readers and ensure that they visit pages in the correct context and order desired. Our most recent effort was the construction of a layer that filters content between the reader and the Web. This layer allows the ready composition of graph protocols so that Web content can be interpreted according to a variety of graph models. The model of the first project was expanded to be a full colored Petri net, thereby allowing synchronization of multiple browsing streams; the application of the MMM project to education now extends to a full collaborative classroom.