August 13, 2022

National Universal Central Catalog, NUKAT - the central catalog of some Polish scientific and academic libraries. Launched in 2002. It includes descriptions of various types of publications: books, magazines, audio recordings, music prints, films, cartographic and iconographic documents or documents of social life. Currently, it includes the collections of 182 libraries (as of 07/24/2022). A retroconversion of descriptions of documents issued before 2002 is also carried out.


Since 1996, the Center for Formats and Files of Model Entries (CFiKHW) was operating at the University Library in Warsaw (BUW), a branch supervising the work on the central file of model entries (CKHW), started at BUW in 1991. In 2001, CFiKHW was transformed into the NUKAT Center and preparations for the launch of co-cataloging in one catalog were started. The first record was entered into the central database on July 5, 2002, and on October 21 of the same year, the official opening of the National Universal Central Catalog NUKAT at the University Library in Warsaw took place. The NUKAT library includes collections from 32 libraries. In 2005, an agreement was signed with OCLC (Online Computer Library Center) on the transfer of descriptions from the NUKAT database to the WorldCat catalog. The National Library started co-cataloging, which lasted until 2008, and the NUKAT central catalog includes collections of 58 libraries. In 2009–2013, the OPDP (Digital Poland Operational Program) "Digital Information Highway" project was implemented. The NUKAT database was merged with local catalogs of 30 libraries (a total of 292,000 bibliographic records). In 2017, the database included descriptions from 157 libraries, and a year later there were 168 of them. Retroconversion of records is still ongoing. From January 2018, bibliographic records are built according to the RDA (Resource Description and Access) rules. The largest research centers and leading specialist institutions in their fields cooperate with the NUKAT catalog. Among them there are libraries of universities, libraries of units of the Polish Academy of Sciences (including research stations of the Polish Academy of Sciences in Paris, Rome, Vienna), libraries of research and development units, provincial and pedagogical libraries. Maria Burchard was the head of CFiKHW, and then the NUKAT Center in 1996-2014. Her successor in 2015 was Ewa Kobierska-Maciuszko, previously the director of BUW.

Principle of operation

The central NUKAT catalog is a source of ready-made bibliographic and reference records for libraries. Thanks to this, it is possible to speed up the current catalog work and retroconversion. The content of the NUKAT catalog is built by employees of libraries contributing to this database. If the required description is in the NUKAT catalog, the librarian downloads it along with the complete set of template entries to his local database, which is noted in the bibliographic record. In the absence of a description, the librarian builds a description in the central database and after it appears in the NUKAT catalog, downloads it to his local database. The effect of these activities is integrated information about the resources of scientific and academic libraries that expressed their willingness to participate in the project. The consistency of data in the catalog is ensured by the Central File of Model Entries, which guarantees the correctness and uniformity of terms used in document descriptions. For example, thanks to the file, all the works of a given author are collected under one unified form of a password, even when the author used many names (surname, pseudonym, initials). 3 information and search languages ​​are used to compile the material of the collections in the NUKAT catalog: the KABA subject headings language (jhp KABA), Medical Subject Headings (MeSH) and the subject headings language of the National Library (jhp BN), being transformed into a descriptor language (DBN). - Descriptors