Concurrency control in groupware systems
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
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)
High-latency, low-bandwidth windowing in the Jupiter collaboration system
Proceedings of the 8th annual ACM symposium on User interface and software technology
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
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
ACM Transactions on Computer-Human Interaction (TOCHI)
Reducing the problems of group undo
GROUP '99 Proceedings of the international ACM SIGGROUP conference on Supporting group work
Copies convergence in a distributed real-time collaborative environment
CSCW '00 Proceedings of the 2000 ACM conference on Computer supported cooperative work
Time, clocks, and the ordering of events in a distributed system
Communications of the ACM
Flexible notification for collaborative systems
CSCW '02 Proceedings of the 2002 ACM conference on 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
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
Transparent adaptation of single-user applications for multi-user real-time collaboration
ACM Transactions on Computer-Human Interaction (TOCHI)
Context-Based Operational Transformation in Distributed Collaborative Editing Systems
IEEE Transactions on Parallel and Distributed Systems
An Admissibility-Based Operational Transformation Framework for Collaborative Editing Systems
Computer Supported Cooperative Work
Proceedings of the ACM 2012 conference on Computer Supported Cooperative Work
Dependency-conflict detection in real-time collaborative 3D design systems
Proceedings of the 2013 conference on Computer supported cooperative work
Exhaustive search of puzzles in operational transformation
Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing
Exhaustive search of puzzles in operational transformation
Proceedings of the 17th ACM conference on Computer supported cooperative work & social computing
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In this paper, we present a comprehensive and in-depth study on convergence preservation and avoidance in Operational Transformation (OT) systems. In this study, we discovered basic conditions, transformation patterns, and mechanisms for avoiding Convergence Property 2 (CP2), and established CP2-avoidance correctness of seven major OT systems. Furthermore, we proposed improvements to existing systems and designed a new OT system capable of avoiding CP2 with a unique combination of novel features. These results contribute significantly to the advancement of OT and collaboration-enabling technology.