Undoing actions in collaborative work
Atul Prakash, Michael J. Knister · 1992
Due to lack of full awareness of other users' intentions, the possibility of inadvertent mistakes is higher in collaborative work, and yet most current collaborative systems fail to provide adequate facilities for undoing actions. This limitation occurs because undo facilities of single-user systems do not readily apply to collaborative systems. In this paper, we propose a general framework for undoing actions in collaborative software systems. The framework takes into account the possibility of conflicts between different users' actions that may prevent a normal undo. The framework also allows selection of actions to undo based on who performed them, where they occurred, or any other appropriate criteria. 1 Introduction The ability to reverse, or undo, the effects of previous actions has become a common feature in modern application software. This ability is particularly valuable in collaborative applications, but it is technically much more difficult to implement than in a single-us...