Interacting with Computers
A selective undo mechanism for graphical user interfaces based on command objects
ACM Transactions on Computer-Human Interaction (TOCHI)
A framework for undoing actions in collaborative systems
ACM Transactions on Computer-Human Interaction (TOCHI)
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
Reducing the problems of group undo
GROUP '99 Proceedings of the international ACM SIGGROUP conference on Supporting group work
A general multi-user undo/redo model
ECSCW'95 Proceedings of the fourth conference on European Conference on Computer-Supported Cooperative Work
Undoing any operation in collaborative graphics editing systems
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)
Undo as concurrent inverse in group editors
ACM Transactions on Computer-Human Interaction (TOCHI)
Achieving undo in bitmap-based collaborative graphics editing systems
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
Collaborative Highlighting for Real-Time Group Editors
IICS '02 Proceedings of the Second International Workshop on Innovative Internet Computing Systems
Recovery Support for Internet-Based Real-Time Collaborative Editing Systems
ICCNMC '01 Proceedings of the 2001 International Conference on Computer Networks and Mobile Computing (ICCNMC'01)
Improving real-time collaboration with highlighting
Future Generation Computer Systems - Special issue: Advanced services for clusters and internet computing
Consistency maintenance based on the mark & retrace technique in groupware systems
GROUP '05 Proceedings of the 2005 international ACM SIGGROUP conference on Supporting group work
An empirical evaluation of undo mechanisms
Proceedings of the 4th Nordic conference on Human-computer interaction: changing roles
Customizable collaborative editor relying on treeOPT algorithm
ECSCW'03 Proceedings of the eighth conference on European Conference on Computer Supported Cooperative Work
Bridging patterns: An approach to bridge gaps between SE and HCI
Information and Software Technology
Using task models for cascading selective undo
TAMODIA'06 Proceedings of the 5th international conference on Task models and diagrams for users interface design
A flexible multi-mode undo mechanism for a collaborative modeling environment
CRIWG'09 Proceedings of the 15th international conference on Groupware: design, implementation, and use
CSCWD'04 Proceedings of the 8th international conference on Computer Supported Cooperative Work in Design I
Toward undoing in composite web services
Architecting Dependable Systems III
Regional undo/redo techniques for large interactive surfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
| Hi-index | 0.00 |
The ability to undo operations is an indispensable feature of real-time group editors, but supporting group undo is a difficult problem. None of the existing solutions for group undo is able to support undoing any operation at any time with guaranteed success. In this paper, we contribute a novel group undo solution with such a capability. The basic idea is to interpret an undo command as a concurrent inverse operation by means of operational transformation, so that an operation is always undoable regardless of its undo context. By separating undo policy from undo mechanism, multiple undo modes, such as single-step undo, chronological undo, and selective undo, can be supported in the same collaborative editing session. In addition, solutions to known undopuzzles are also provided. A web-based group text editor using the proposed undo solution has been implemented and is accessible at: http://reduce.qpsf.edu.au.