Intra and Inter Domain Social Information Service (IIDSIS): Definition and evaluation of a supporting architecture

We present a platform for Intra and Inter Domain Social Information Service (IIDSIS), able to identify, analyse and exploit (complex) relationships emerging from the use of multiple pervasive Internet services, offered in different domains. The computed social information is offered as a service to the domain applications, both to improve their effectiveness and to increase end-users' awareness of their broader social context. In particular, we introduce an abstract framework for expressing high-level requirements for IIDSIS and propose a reference architecture for distributed implementations. We discuss a specific implementation, called PASION, that proved the platform effectiveness in extensive trial campaigns.