Concurrency control in groupware systems
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
DistEdit: a distributed toolkit for supporting multiple group editors
CSCW '90 Proceedings of the 1990 ACM conference on Computer-supported cooperative work
Undoing actions in collaborative work
CSCW '92 Proceedings of the 1992 ACM conference on Computer-supported cooperative work
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We report our experiences from building a prototype toolkit, called DistEdit, for building interactive group editors in distributed environments. Based on our experience in building the toolkit, we found that some design solutions that are commonly used in single-user editors are not necessarily appropriate in group editors. Furthermore, design of group editors requires a better understanding of the semantics of editing operations than in the corresponding single-user editors. These semantics are useful for providing a variety of services, such as undo, concurrency control, and selective replay. This position paper is presented in the context of text editors; however, many of the ideas presented here also apply to other types of group editors.