Collaborative document production using quilt
CSCW '88 Proceedings of the 1988 ACM conference on Computer-supported cooperative work
Concurrency control in groupware systems
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
Groupware: some issues and experiences
Communications of the ACM
Access control for collaborative environments
CSCW '92 Proceedings of the 1992 ACM conference on Computer-supported cooperative work
Awareness and coordination in shared workspaces
CSCW '92 Proceedings of the 1992 ACM conference on Computer-supported cooperative work
Flexible, active support for collaborative work with ConversationBuilder
CSCW '92 Proceedings of the 1992 ACM conference on Computer-supported cooperative work
Interpreted collaboration protocols and their use in groupware prototyping
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
An editing-based characterization of the design space of collaborative applications
Journal of Organizational Computing - Special issue: organizational computing coordination and collaboration
A reliable multicast framework for light-weight sessions and application level framing
SIGCOMM '95 Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
Specifying dynamic support for collaborative work within WORLDS
COCS '95 Proceedings of conference on Organizational computing systems
Policies and roles in collaborative applications
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
DCWPL: a programming language for describing collaborative work
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
A concurrency control framework for collaborative systems
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
Floor control for multimedia conferencing and collaboration
Multimedia Systems
ACM Transactions on Computer-Human Interaction (TOCHI)
Designing for the dynamics of cooperative work activities
CSCW '98 Proceedings of the 1998 ACM conference on Computer supported cooperative work
COCA: collaborative objects coordination architecture
CSCW '98 Proceedings of the 1998 ACM conference on Computer supported cooperative work
Supporting flexible roles in a shared space
CSCW '98 Proceedings of the 1998 ACM conference on Computer supported cooperative work
A comprehensive approach to flexibility in workflow management systems
WACC '99 Proceedings of the international joint conference on Work activities coordination and collaboration
“Got COCA?” A new perspective in building electronic meeting systems
WACC '99 Proceedings of the international joint conference on Work activities coordination and collaboration
A collaboration specification language
Proceedings of the 2nd conference on Domain-specific languages
Building reconfiguration primitives into the law of a system
ICCDS '96 Proceedings of the 3rd International Conference on Configurable Distributed Systems
A collaboration specification language
Proceedings of the 2nd conference on Domain-specific languages
GROUP '01 Proceedings of the 2001 International ACM SIGGROUP Conference on Supporting Group Work
Support for geographically dispersed software teams
Advances in software engineering
The gods must be crazy: a matter of time in collaborative systems
ACM SIGGROUP Bulletin
Technology on social issues of videoconferencing on the internet: a survey
Journal of Network and Computer Applications
Supporting Adaptable Consistency Control in Structured Collaborative Workspaces
Computer Supported Cooperative Work
A collaboration specification language
DSL'99 Proceedings of the 2nd conference on Conference on Domain-Specific Languages - Volume 2
Proceedings of the 2005 conference on Self-Organization and Autonomic Informatics (I)
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The importance of supporting flexible roles and dynamic policies has long been recognized in the CSCW (Computer-Supported Cooperative Work) literature but unfortunately never with a systematic solution. This paper proposes a taxonomy of runtime dynamics in collaborative systems in general and discusses our solution in the COCA framework. Firstly, individual participants can take roles, drop roles, and switch between roles as a collaboration runs, Secondly, a role can be transferred from one participant to another at runtime. Thirdly, session-wide, authorized participants can change the definition of roles and coordination policies on the fly while keeping the mapping between roles and participants. When such changes happen on the fly, the runtime environment of the sites which are potentially affected, including the state information within the computation modules and the communication channels, must be handled properly according to the semantics of the collaboration itself.