What is a Distributed Catalog?

A A Distributed Catalog gives operators and a group of sites the ability to share resources with one another, yet still manage and control their own collection independently. Databases are stored on separate data stations at each site or at a “server farm” in a central location. Patrons have the ability to search other sites' catalogs through 

Each site can choose an appropriate license level for their patron base and anticipated usage, and each site maintains control over their own policies, preferences, and cataloging.