An online public access catalog, also known as an OPAC, is a computer system used to track and manage the bibliographic records of a library or group of libraries The catalog is public in the sense that anyone can access it, regardless of membership or other qualifications, to search for items in a library collection. Typically, the catalog includes catalog records for books, periodicals, music, audiovisual materials, and other library resources.
The online public access catalog is an invaluable tool for libraries to organize and manage their collections more effectively. It allows library users to search the catalog from outside the library and use advanced search techniques to find what they're looking for. At the same time, it helps library staff to keep track of their collections, identify outdated material, and keep up with the latest trends.
The following are five of the best examples of online public access catalogs:
1. WorldCat – WorldCat is the world’s largest library catalog, containing millions of items from thousands of libraries around the world. It is administered by OCLC, a global library cooperative that works to make library research easier. The WorldCat catalog is particularly useful for researching interlibrary loans and other library-related topics.
2. Polaris – Polaris is an integrated library system used by over 6,000 libraries across the United States and Canada. It features an advanced library catalog, circulation and cataloging capabilities, and a suite of other features to make library management easier.
3. Koha – Koha is an open-source library management system developed and maintained by a global community of librarians and software developers. It is used in libraries of all sizes, from small local libraries to large university systems. The Koha OPAC is designed to be intuitive, user-friendly, and customizable.
4. Voyager – Voyager is an integrated library system developed by the software company Innovative Interfaces. It provides library staff with powerful tools for cataloging, circulation, and other library management tasks. Its OPAC is fast, intuitive, and allows users to customize the search experience.
5. Sierra – Sierra is an integrated library system developed by the software company EBSCO. It provides a comprehensive set of library management tools, including an advanced OPAC. It also includes features for refining search results, tracking library patrons, and managing library finances.
Online public access catalogs provide an invaluable tool for libraries of all sizes to organize and manage their collections more effectively. They allow library users to search the catalog from outside the library and use advanced search techniques to find what they’re looking for. These five examples are just some of the best online public access catalogs available, and each provides a different set of features to make library management easier.