Crosswalks to CT
Crosswalks to CT have developed to achieve metadata interoperability among different metadata standards especially MARC, MODS, DC, and QDC.
The current Common Terminology (CT) version 1.1 is updated. The updated CT version 1.1 changes or omits few unnecessary qualifiers of version 1.1. These changes are based on analyses of CT usage used in conversions from Europeana, DPLA, National Library of Korea, Harvard and MIT metadata records on January 18, 2017 by Boaz Sunyoung Jin.
The updated CT version 1.1 Crosswalks
[gview file=”http://www.ct.iopdl.org/1.1/CT_crosswalk7_doc.pdf” save=”1″]
Old CT version 1.1 Crosswalk for MARC, MODS, DC, QDC
Crosswalk MARC, MODS, DC, and QDC to CT version 1.1 is developed by (Boaz) Sunyoung Jin, supervised by Professor Dubin and supported by Dean Smith of Graduate School of Library of Information Science at University of Illinois at Urbana-Champaign (November 13, 2014)
The Common Terminology version 1.1 is a bridge terminology of widely used MARC, MODS, DC and QDC that have very different degree of specificity and generality. Since it is a bridge terminology, it allows communities to use their own standards but it provides uniformity to searching achieving interoperability among them.
The developed Common Terminology 1.1 is defined as a set of 12 Common Terms (property) and 58 qualifiers (subproperty) with CTScheme. The Common Terms are especially common element names of widely used metadata schemas (e.g., MARC, MODS, DC & QDC).
12 Common Terms (propertyes) are contributor, date,description, format, identifier, language, publisher, relation, rights, subject, title, and typeGenre.
CTScheme is an enumerated set of resources used as a controlled set of values including authorities, Syntax Encoding Scheme and Vocabulary Encoding Scheme of DCMI. CTScheme includes CTTypeGenre, CTFormat, CTRelator, CTLanguage, CTDescription, CTIdentifier, and CTSubject.
This document shows the detail crosswalk for MARC, MODS, DC, and QDC to CT. The crosswalk for MARC, MODS, DC and QDC is designed to clearly show how they are semantically and lexically mapped into CT minimizing loss of information and maximizing preserving the specificity and precision of the source metadata records. Each table explains a Common Term (property) with its qualifiers that specify it, and with authorities in CTScheme. CTScheme is an enumerated set of resources used as a controlled set of values, including authorities. *Since CT is common terms of MARC, MODS, DC and QDC, CT definitions follow their definitions.
[gview file=”http://www.ct.iopdl.org/1.1/CrosswalktoCT1-1.pdf” save=”1″]
Other Crosswalks
Reference
DCMI. (n.d.). Dublin Core Metadata Element Set, Version 1.1. Retrieved from Dublin Core Metadata Innovation: http://dublincore.org/documents/dces/
DCMI-terms. (n.d.). DCMI Metadata Terms. Retrieved from Dublin Core Metadata Initiative: http://dublincore.org/documents/dcmi-terms/
ISO. (n.d.). International Standard Music Number (ISMN) updated in ISO standard. Retrieved from International Standard Music Number (ISMN) updated in ISO standard: http://www.iso.org/iso/home/news_index/news_archive/news.htm?refid=Ref1256
issn. (n.d.). What is an ISSN? Retrieved from http://www.issn.org/: http://www.issn.org/understanding-the-issn/what-is-an-issn/#
LC-NBN. (n.d.). National Bibliography Number Source Codes. Retrieved from Source Codes for Vocabularies, Rules, and Schemes: http://www.loc.gov/standards/sourcelist/national-bibliography.html
MODS, L. (n.d.). MODS User Guidelines. Retrieved from The Library of Congress: http://www.loc.gov/standards/mods/userguide
W3C. (n.d.). Date and Time Formats. Retrieved from W3C: http://www.w3.org/TR/NOTE-datetime
Wikipedia. (n.d.). Library of Congress Control Number. Retrieved from Wikipedia: http://en.wikipedia.org/wiki/Library_of_Congress_Control_Number