Beyond the chalkboard: computer support for collaboration and problem solving in meetings
Communications of the ACM
Concurrency control in groupware systems
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
Implicit locking in the ensemble concurrent object-oriented graphics editor
CSCW '92 Proceedings of the 1992 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
CSCW '96 Proceedings of the 1996 ACM conference on Computer supported cooperative work
LICRA: a replicated-data management algorithm for distributed synchronous groupware applications
Parallel Computing - Special issue: distributed and parallel systems: environments and tools
ACM Transactions on Computer-Human Interaction (TOCHI)
Consistency maintenance in real-time collaborative graphics editing systems
ACM Transactions on Computer-Human Interaction (TOCHI)
Concurrent Operations in a Distributed and Mobile Collaborative Environment
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Customizable collaborative editor relying on treeOPT algorithm
ECSCW'03 Proceedings of the eighth conference on European Conference on Computer Supported Cooperative Work
Concept and prototype of a collaborative business process environment for document processing
Data & Knowledge Engineering - Special issue: Collaborative business process technologies
Supporting distributed software design meetings: what can we learn from co-located meetings?
HSSE '05 Proceedings of the 2005 workshop on Human and social factors of software engineering
Draw-together: graphical editor for collaborative drawing
CSCW '06 Proceedings of the 2006 20th anniversary conference on Computer supported cooperative work
Customisable collaborative editing supporting the work processes of organisations
Computers in Industry - Special issue: Collaborative environments for concurrent engineering
Plug-replaceable consistency maintenance for multiplayer games
NetGames '06 Proceedings of 5th ACM SIGCOMM workshop on Network and system support for games
Maintaining constraints in collaborative graphic systems: the CoGSE approach
ECSCW'05 Proceedings of the ninth conference on European Conference on Computer Supported Cooperative Work
Structured collaborative workflow design
Future Generation Computer Systems
CLAF: Solving intention violation of step-wise operations in CAD groupware
Advanced Engineering Informatics
A constraint maintenance strategy and applications in real-time collaborative environments
CDVE'05 Proceedings of the Second international conference on Cooperative Design, Visualization, and Engineering
| Hi-index | 0.00 |
Often collaborative graphical systems lag behind well accepted single-user applications in terms of features supported. The frequently used operations of group/ungroup offered by almost every single-user graphical editor have not been considered by the collaborative graphical editing systems that try to preserve the intentions of the users involved in the concurrent editing. In this paper we present a novel algorithm based on operation serialisation for consistency maintenance in collaborative graphical editing dealing not only with simple operations such as create, delete, move, change colour or position, but also with group/ungroup operations. Based on the classification of conflicts into real and resolvable, an undo/redo mechanism is used in order to re-execute the operations in an imposed serialisation order.