Beyond the chalkboard: computer support for collaboration and problem solving in meetings
Communications of the ACM
WYSIWIS revised: early experiences with multiuser interfaces
ACM Transactions on Information Systems (TOIS)
A foundation for the study of group decision support systems
Management Science
Communication and collaboration: facilitating cooperative work through communication
Office Technology and People - Computer-Supported Cooperative Work
gIBIS: a hypertext tool for exploratory policy discussion
ACM Transactions on Information Systems (TOIS)
IBM Systems Journal
Groupware: some issues and experiences
Communications of the ACM
Multicast channels for collaborative applications: design and performance evaluation
ACM SIGCOMM Computer Communication Review
Alleviating convergence problems in group support systems: the shared context approach
Computer Supported Cooperative Work
Group Support Systems: New Perspectives
Group Support Systems: New Perspectives
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This paper describes practical design and implementation techniques used for creating Group Support Systems (GSS) in networked PC environments. Examples of GSS based on the shared context model and implemented in Microsoft Windows are presented and experiences using 'C', 'C++', 'ObjectPascal' and 'Actor' languages included. Graphical user interfaces and multi-tasking extend traditional methods for supporting group work. The Network Based Object provides support for all inter and intra processor communications between the GSS applications. Multiple levels of data service are provided to maintain shared data, coordinate "What You See Is What I See" views, and transmit cursor gestures in a convenient and efficient manner. The applications presented demonstrate the viability of implementing GSS on PCs. The unique properties of multi-tasking operating systems coupled with the object-oriented paradigm greatly facilitate Group Support System creation and use. An example application illustrating these concepts is included on the CD-ROM.