1. The document discusses OPAC (Online Public Access Catalog) and IPAC (Internet Public Access Catalog), which are tools that allow users to search a library's catalog online.
2. It provides information on accessing the SWU Library OPAC online and describes its basic search and user functions like catalog searching, borrowing information, book renewals, and reserving items.
3. The OPAC allows different search methods like keyword, Boolean, and alphabetical searches of the catalog as well as limiting searches by criteria like subject, date, and item type.