Flexible networked data management on P2P

One of the interesting research challenges in todays´ global repositories is to add more representation and query capacity in a networked P2P-like flexible environment to obtain a flexible networked data management system. With the combination of DBMS expressiveness and P2P flexibility and decentralization, that goal may become a reality. In this paper we describe the techniques we have been working on to combine schema representation and query processing capacity to the flexible and decentralized nature of P2P overlays to obtain a flexible networked DBMS we call the peer-to-peer data management system (PPDM). Several research issues are raised in the discussion.