1) The document discusses integrating Metalib, SFX, and PAPI to transparently change a metasearcher for users.
2) It aims to guarantee access to all library resources for users of the Andalusian Public Health System, which has 95,000 users across 14 institutions.
3) The integration would authenticate users through the PAPI federated system and use a rewriting proxy to provide remote access to all subscriptions independently of provider using a single user/password pair.