Abstract: In this study, we present our approach to integrate the peer-to-peer platforms. Our approach is based on a semantic peer profile and the roaming service. The semantic profile is considered as a formal ontology that puts a clear separation between the platform specific characteristics and the logical ones. In order to enable the navigation of the peer across platforms, a roaming service is added. The latter uses the proposed ontology and deals with the platform specifications to ensure unique vision of the peer. The ontology is created according to a specific development process that produces a validate OWL document; so, the structure of the system is considered as a web resource.