Resource Description and Access (RDA) is a standard for descriptive cataloging initially released in June 2010, [1] providing instructions and guidelines on formulating bibliographic data. Intended for use by libraries and other cultural organizations such as museums and archives, RDA is the successor to Anglo-American Cataloguing Rules, Second Edition (AACR2).
RDA emerged from the International Conference on the Principles & Future Development of AACR held in Toronto in 1997. [2] It is published jointly by the American Library Association, the Canadian Federation of Library Associations, and the Chartered Institute of Library and Information Professionals (CILIP) in the United Kingdom. Maintenance of RDA is the responsibility of the RDA Steering Committee (RSC). As of 2015, RSC is undergoing a transition to an international governance structure, expected to be in place in 2019. [3]
RDA instructions and guidelines are available through RDA Toolkit, an online subscription service, and in a print format.
RDA training materials and texts are available online and in print. [4]
RDA is a package of data elements, guidelines, and instructions for creating library and cultural heritage resource metadata that are well-formed according to international models for user-focused linked data applications. [5] The underlying conceptual models for RDA are the Functional Requirements for Bibliographic Records (FRBR), Functional Requirements for Authority Data (FRAD), and Functional Requirements for Subject Authority Data (FRSAD) maintained by IFLA, and will be compliant with the Library Reference Model, the IFLA standard that consolidates them. [6]
RDA Vocabularies is a representation of the RDA entities, elements, relationship designators, and controlled terms in RDF (Resource Description Framework). The Vocabularies are intended to support linked data applications using RDA. They are maintained in the Open Metadata Registry, [7] a metadata registry, and released via GitHub and the RDA Registry.
The human-readable labels, definitions, and other textual annotations in the Vocabularies are known as RDA Reference. The RDA Reference data are used in the production of RDA Toolkit content. [8]
The RDA Vocabularies and RDA Reference are available under an open license.
RDA is in step with the Statement of International Cataloguing Principles published by IFLA in 2009, and updated in 2016. [9]
The Committee of Principals for RDA, now the RDA Board, announced its commitment to internationalization of RDA in 2015. [5] This is reflected in the new governance structure with representation based on the United Nations Regional Groups, comprising, Africa, Asia, Europe, Latin America and the Caribbean, North America, and Oceania.
As of May 2017, the RDA Toolkit has been translated from English into Catalan, Chinese, Finnish, French, German, Italian, and Spanish. [10] RDA Reference is currently being translated into these languages as well as others including Arabic, Danish, Dutch, Greek, Hebrew, Swedish, and Vietnamese. [11]
In March 2012 the Library of Congress announced that it would fully implement RDA cataloging by the end of March 2013. [12] Library and Archives Canada fully implemented the standard in September 2013. British Library, National Library of Australia, and Deutsche Nationalbibliothek and other national libraries have since implemented RDA [ citation needed ].
In the United States, the cataloguing community expressed reservations about the new standard in regard to both the business case for RDA in a depressed economy and the value of the standard's stated goals. [13] Michael Gorman, one of the authors of AACR2, was particularly vocal in expression of his opposition to the new guidelines, claiming that RDA was poorly written and organized, and that the plan for RDA unnecessarily abandoned established cataloging practices. [14] Others felt that RDA was too rooted in past practices and therefore was not a vision for the future. [15] In response to these concerns, the three United States national libraries (Library of Congress, National Library of Medicine, and the National Agricultural Library) organized a nationwide test of the new standard.
On 13 June 2011, the Library of Congress, the National Agricultural Library, and the National Library of Medicine released the results of their testing. [16] The test found that RDA to some degree met most of the goals that the JSC (Joint Steering Committee for Development of RDA) put forth for the new code and failed to meet a few of those goals. The Coordinating Committee admitted that they "wrestled with articulating a business case for implementing RDA", nevertheless the report recommended that RDA be adopted by the three national libraries, contingent on several improvements being made. [16] The earliest possible date for implementation was given as January 2013, as the consensus emerging from the analysis of the test data showed that while there were discernible benefits to implementing RDA, these benefits would not be realized without further changes to current cataloging practices, including developing a successor to the MARC format. [16] [17] [18]
Several other institutions were involved in the RDA test. Many of these institutions documented their findings in a special issue of Cataloging & Classification Quarterly . [19]
The Dublin Core, also known as the Dublin Core Metadata Element Set (DCMES), is a set of fifteen main metadata items for describing digital or physical resources. The Dublin Core Metadata Initiative (DCMI) is responsible for formulating the Dublin Core; DCMI is a project of the Association for Information Science and Technology (ASIS&T), a non-profit organization.
The International Standard Bibliographic Description (ISBD) is a set of rules produced by the International Federation of Library Associations and Institutions (IFLA) to create a bibliographic description in a standard, human-readable form, especially for use in a bibliography or a library catalog. A preliminary consolidated edition of the ISBD was published in 2007 and the consolidated edition was published in 2011, superseding earlier separate ISBDs for monographs, older monographic publications, cartographic materials, serials and other continuing resources, electronic resources, non-book materials, and printed music. In 2022, IFLA published the 2021 update to the 2011 consolidated edition, which includes expanding ISBD to include unpublished resources, integrating stipulations for the application of ISBD to the description of component parts, clarifying cartographic resources stipulations, as well as added examples and updates to the Areas and glossary sections. IFLA's ISBD Review Group is responsible for maintaining the ISBD.
MARC is a standard set of digital formats for the machine-readable description of items catalogued by libraries, such as books, DVDs, and digital resources. Computerized library catalogs and library management software need to structure their catalog records as per an industry-wide standard, which is MARC, so that bibliographic information can be shared freely between computers. The structure of bibliographic records almost universally follows the MARC standard. Other standards work in conjunction with MARC, for example, Anglo-American Cataloguing Rules (AACR)/Resource Description and Access (RDA) provide guidelines on formulating bibliographic data into the MARC record structure, while the International Standard Bibliographic Description (ISBD) provides guidelines for displaying MARC records in a standard, human-readable form.
Anglo-American Cataloguing Rules (AACR) were an international library cataloging standard. First published in 1967 and edited by C. Sumner Spalding, a second edition (AACR2) edited by Michael Gorman and Paul W. Winkler was issued in 1978, with subsequent revisions (AACR2R) appearing in 1988 and 1998; all updates ceased in 2005.
ALA-LC is a set of standards for romanization, the representation of text in other writing systems using the Latin script.
A metadata registry is a central location in an organization where metadata definitions are stored and maintained in a controlled method.
Functional Requirements for Bibliographic Records is a conceptual entity–relationship model developed by the International Federation of Library Associations and Institutions (IFLA) that relates user tasks of retrieval and access in online library catalogues and bibliographic databases from a user’s perspective. It represents a more holistic approach to retrieval and access as the relationships between the entities provide links to navigate through the hierarchy of relationships. The model is significant because it is separate from specific cataloguing standards such as Anglo-American Cataloguing Rules (AACR), Resource Description and Access (RDA) and International Standard Bibliographic Description (ISBD).
In library and information science, cataloging (US) or cataloguing (UK) is the process of creating metadata representing information resources, such as books, sound recordings, moving images, etc. Cataloging provides information such as author's names, titles, and subject terms that describe resources, typically through the creation of bibliographic records. The records serve as surrogates for the stored information resources. Since the 1970s these metadata are in machine-readable form and are indexed by information retrieval tools, such as bibliographic databases or search engines. While typically the cataloging process results in the production of library catalogs, it also produces other types of discovery tools for documents and collections.
The Metadata Object Description Schema (MODS) is an XML-based bibliographic description schema developed by the United States Library of Congress' Network Development and Standards Office. MODS was designed as a compromise between the complexity of the MARC format used by libraries and the extreme simplicity of Dublin Core metadata.
indecs was a project partly funded by the European Community Info 2000 initiative and by several organisations representing the music, rights, text publishing, authors, library and other sectors in 1998-2000, which has since been used in a number of metadata activities. A final report and related documents were published; the indecs Metadata Framework document is a concise summary.
Describing Archives: A Content Standard (DACS) is a standard used for describing materials in archives. First adopted by the Society of American Archivists (SAA) in March 2004, DACS was updated with a Second Edition in 2013. DACS is broken down into a set of rules used in crafting archival descriptions, and guidelines for creating authority records in archives.
Metadata is "data that provides information about other data", but not the content of the data itself, such as the text of a message or the image itself. There are many distinct types of metadata, including:
A metadata standard is a requirement which is intended to establish a common understanding of the meaning or semantics of the data, to ensure correct and proper use and interpretation of the data by its owners and users. To achieve this common understanding, a number of characteristics, or attributes of the data have to be defined, also known as metadata.
Ben Gu is a librarian, translator and library science researcher. He received his M.S. degree in Mathematics in Fudan University in 1987, and got his Ph.D. degree in Information Science in Renmin University of China in 2000. He translated many scholarly works in musicology, philosophy, history and library science, and compiled several books in library acquisitions and library cataloging. He was awarded by the State Council for his special contributions in library science.
BIBFRAME is a data model for bibliographic description. BIBFRAME was designed to replace the MARC standards, and to use linked data principles to make bibliographic data more useful both within and outside the library community.
Barbara Ann Barnett Tillett is a librarian and library scholar known for her work on authority control and bibliographic data modeling.
The Nuovo soggettario is a subject indexing system managed and implemented by the National Central Library of Florence, that in Italy has the institutional task to curate and develop the subject indexing tools, as national book archive and as bibliographic production agency of the Italian National Bibliography. It can be used in libraries, archives, media libraries, documentation centers and other institutes of the cultural heritage to index resources of various nature on various supports
The IFLA Library Reference Model is a conceptual entity–relationship model developed by the International Federation of Library Associations and Institutions (IFLA) that expresses the "logical structure of bibliographic information". It unifies the models of Functional Requirements for Bibliographic Records (FRBR), Functional Requirements for Authority Data (FRAD) and Functional Requirements for Subject Authority Data (FRSAD). The IFLA LRM is intended to be used as the basis of cataloguing rules and implementing bibliographic information systems. It has Library of Congress subject heading number 2017004509.
The Regeln für die alphabetische Katalogisierung or RAK are a bibliographic cataloging set of rules. The RAK rules appeared for the first time in 1976 and became the dominant set of rules in Germany and Austria in the 1980s.
The (Statement of) International Cataloguing Principles (ICP) define(s) the foundation for the creation of bibliographical cataloging rules for libraries. The ICPs are an initiative of the International Federation of Library Associations and Institutions (IFLA) to modernize and replace the old Paris Principles (PP).