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
Unblocking brainstorming through the use of a simple group editor
CSCW '92 Proceedings of the 1992 ACM conference on Computer-supported cooperative work
The user-centered iterative design of collaborative writing software
INTERCHI '93 Proceedings of the INTERCHI '93 conference on Human factors in computing systems
Groupware and social dynamics: eight challenges for developers
Communications of the ACM
Computer support for distributed collaborative writing: defining parameters of interaction
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
Real time groupware as a distributed system: concurrency control and its effect on the interface
CSCW '94 Proceedings of the 1994 ACM conference on Computer supported cooperative work
A framework for undoing actions in collaborative systems
ACM Transactions on Computer-Human Interaction (TOCHI)
An editing-based characterization of the design space of collaborative applications
Journal of Organizational Computing - Special issue: organizational computing coordination and collaboration
High-latency, low-bandwidth windowing in the Jupiter collaboration system
Proceedings of the 8th annual ACM symposium on User interface and software technology
Policies and roles in collaborative applications
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
An integrating, transformation-oriented approach to concurrency control and undo in group editors
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
Serialization of concurrent operations in a distributed collaborative environment
GROUP '97 Proceedings of the international ACM SIGGROUP conference on Supporting group work: the integration challenge
ACM Transactions on Computer-Human Interaction (TOCHI)
Operational transformation in real-time group editors: issues, algorithms, and achievements
CSCW '98 Proceedings of the 1998 ACM conference on Computer supported cooperative work
Computer Supported Cooperative Work
Copies convergence in a distributed real-time collaborative environment
CSCW '00 Proceedings of the 2000 ACM conference on Computer supported cooperative work
GROUP '01 Proceedings of the 2001 International ACM SIGGROUP Conference on Supporting Group Work
Consistency maintenance in real-time collaborative graphics editing systems
ACM Transactions on Computer-Human Interaction (TOCHI)
Cooperative visual manipulation of music notation
ACM Transactions on Computer-Human Interaction (TOCHI)
Undo as concurrent inverse in group editors
ACM Transactions on Computer-Human Interaction (TOCHI)
A Descriptive Framework of Workspace Awareness for Real-Time Groupware
Computer Supported Cooperative Work
Generalizing operational transformation to the standard general markup language
CSCW '02 Proceedings of the 2002 ACM conference on Computer supported cooperative work
Flexible notification for collaborative systems
CSCW '02 Proceedings of the 2002 ACM conference on Computer supported cooperative work
Transparent sharing and interoperation of heterogeneous single-user applications
CSCW '02 Proceedings of the 2002 ACM conference on Computer supported cooperative work
Optional and Responsive Fine-Grain Locking in Internet-Based Collaborative Systems
IEEE Transactions on Parallel and Distributed Systems
Concurrent Operations in a Distributed and Mobile Collaborative Environment
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Empirical Study on Collaborative Writing: What Do Co-authors Do, Use, and Like?
Computer Supported Cooperative Work
A Time Interval Based Consistency Control Algorithm for Interactive Groupware Applications
ICPADS '04 Proceedings of the Parallel and Distributed Systems, Tenth International Conference
Leveraging single-user applications for multi-user collaboration: the coword approach
CSCW '04 Proceedings of the 2004 ACM conference on Computer supported cooperative work
Operational transformation for collaborative word processing
CSCW '04 Proceedings of the 2004 ACM conference on Computer supported cooperative work
A landmark-based transformation approach to concurrency control in group editors
GROUP '05 Proceedings of the 2005 international ACM SIGGROUP conference on Supporting group work
Proving correctness of transformation functions in real-time groupware
ECSCW'03 Proceedings of the eighth conference on European Conference on Computer Supported Cooperative Work
Medium versus mechanism: supporting collaboration through customisation
ECSCW'95 Proceedings of the fourth conference on European Conference on Computer-Supported Cooperative Work
Maintaining constraints in collaborative graphic systems: the CoGSE approach
ECSCW'05 Proceedings of the ninth conference on European Conference on Computer Supported Cooperative Work
A New Operational Transformation Framework for Real-Time Group Editors
IEEE Transactions on Parallel and Distributed Systems
An Operational Transformation Algorithm and Performance Evaluation
Computer Supported Cooperative Work
An Operational Transformation Algorithm and Performance Evaluation
Computer Supported Cooperative Work
Domain-Specific Groupware Environment for E-research on Chemistry
CCGRID '09 Proceedings of the 2009 9th IEEE/ACM International Symposium on Cluster Computing and the Grid
An Admissibility-Based Operational Transformation Framework for Collaborative Editing Systems
Computer Supported Cooperative Work
Deep hypertext with embedded revision control implemented in regular expressions
Proceedings of the 6th International Symposium on Wikis and Open Collaboration
A string-wise CRDT for group editing
Proceedings of the 17th ACM international conference on Supporting group work
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Real-time group editors allow distributed users to edit a shared document at the same time over a computer network. Operational transformation (OT) is a well accepted consistency control method in state-of-the-art group editors. Significant progress has been made in this field but there are still many open issues and research opportunities. In particular, established theoretic OT frameworks all require that OT algorithms be able to converge along arbitrary transformation paths. This property is desirable because group editors that implement such algorithms will not rely on a central component for achieving convergence. However, this has not been achieved in any published work to our knowledge. We analyze the root of this problem and propose a novel state difference based transformation (SDT) approach which ensures convergence in the presence of arbitrary transformation paths. Our approach is based on a novel consistency model that is more explicitly formulated than previously established models for proving correctness. SDT is the first and the only OT algorithm proved to converge in peer-to-peer group editors.