Concurrency Awareness in a P2P Wiki System

Currently, Wikis are the most popular form of collaborative editors. Recently, some researches have been done to shift from traditional centralized architecture to fully decentralized wikis relying on peer-to-peer networks. This architecture improves scalability and fault-tolerance, but subtly changes the behavior of wiki in case of concurrent changes. While traditional wikis ensure that all wiki pages have been reviewed by, at least, a human, some pages in P2P wiki systems can be the result of an automatic merge done by the system. This forces P2P wiki systems to integrate a concurrency awareness system to notify users about the status of wiki pages. The particular context of a P2P wiki system makes traditional awareness mechanisms inadequate. In this paper, we present a new concurrency awareness mechanism designed for P2P wiki systems

SWooki: Un Wiki Sémantique sur réseau Pair-à-Pair

National audienceWiki systems have evolved in two different ways : semantic wikis and peer to peer wikis. Semantic wikis integrate the semantic web technologies in order to improve their structure, the search and the navigation between pages. Peer-to-peer wikis offer a support for massive collaboration, off-line editing mode and an ad-hoc collaboration. The main challenge in designing a peer-to-peer semantic wiki combining both approaches is the merge of wiki pages embedding semantic annotations. Merging algorithms used in peer-to-peer wiki systems have been designed for linear text. They do not handle semantic data. In this paper, we present SWooki the first peer-to-peer semantic wiki. SWooki combines the advantages of both semantic wikis and peer-to-peer wikis. We detail SWooki approach and its merging algorithm, we insist on its characteristics and its functionalities. We conclude by presenting its architecture and its implementation