Consistency awareness in a distributed collaborative system for semantic stores

In distributed collaborative systems for semantic stores editing, multiple users can add, delete and change RDF statements starting from the same replicas and achieving to the same results at the end of the collaborative session. To improve the performance for such systems, the development of an efficient awareness mechanism is very important in order to help users to better understand the semantic stores evolution. Moreover, maintaining the consistency in replicated architecture is one of the most significant problems. However, none of the existing approaches describes how to define the awareness mechanism for distributed semantic stores performing concurrent changes. In this paper, we propose a new powerful optimistic replication solution called AB-Set, which can ensure not only a consistency criteria when editing data but also use semantic web technologies to define an awareness mechanism for making users aware of the different status of the store they share and update regardless of the concurrency level.