Social networking interoperability through extended FOAF vocabulary and service

Various social network services (SNSes) cause the problem of social data inconsistency. The key to resolve this problem is to bring interoperability among multiple social network services. In this paper, we propose to achieve this by introducing the ontology representing SNSes based on FOAF vocabulary. We also implement a FOAF web service to act as an intermediary for social networking interoperability. The example application shows its usage and advantages over the conventional approach.