TOGA - A Customizable Service for Data-Centric Collaboration
CAiSE '99 Proceedings of the 11th International Conference on Advanced Information Systems Engineering
View Propagation and Inconsistency Detection for Cooperative Mobile Agents
On the Move to Meaningful Internet Systems, 2002 - DOA/CoopIS/ODBASE 2002 Confederated International Conferences DOA, CoopIS and ODBASE 2002
W2GIS'04 Proceedings of the 4th international conference on Web and Wireless Geographical Information Systems
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Mobile computing and workgroup computing are emerging technologies which have so far been treated independently. Current approaches to support cooperative work neglect the special characteristics of mobile environments like limited bandwidth or temporary disconnection. On the other hand, approaches to support disconnected operation in mobile environments rely on the assumption that the degree of data sharing is low, which is obviously not appropriate for cooperative work. In this paper, we utilize the COACT (COoperative ACTivity) transaction model to provide support for parallel, disconnected activities. The model incorporates the notion of resolvable, simultaneous work. We show how the COACT 'merge' algorithm reduces conflicts by exploiting operational semantics and offering consistent sequences of operations. We believe that our new approach is a viable solution to the growing demand for cooperation in mobile environments.