The Library of Congress' Network Development and MARC Standards Office is developing a framework for working with MARC data in a XML environment. This framework is intended to be flexible and extensible to allow users to work with MARC data in ways specific to their needs. The framework itself includes many components such as schemas, stylesheets, and software tools.

MARCXML Architecture

• MARCXML Design Considerations
• MARCXML Architecture
• MARCXML Uses and Features

MARCXML Schema & Documentation

• MARCXML Schema
• MARCXML Illustrated

MARCXML Example Documents

• Example MARCXML Documents
  • Carl Sandburg's Arithmetic (single record)
    • Original MARC (2709) Record
    • MARCXML Instance
    • HTML Presentation
    • MODS Transformation
    • Dublin Core Transformation
  • Example of a collection (multiple records)
    • MARCXML Instance
  • Authority Test Files with MARCXML tagging
    The following files were created from standard MARC21 test files available from the Cataloging Distribution Service using the conversion software listed below.
    • Classification
    • Names
    • Subjects

Tools & Utilities

The following are examples of the types of tools LC is considering maintaining. Some of these are recently written by NDMSO or have been adapted from tools built by others.

• MARC 21 to MARCXML Conversion
  • MARCXML Toolkit

  The MARCXML toolkit is a set of Java programs which allow users to convert to and from the MARC file format (including full character set conversion) and other formats available in the MARCXML architecture. The toolkit requires Java and works best with Java 1.4. If using a earlier version of Java, you need to modify the marcxml.bat file to include an xml parser in the classpath. Unzip the marcxml.zip file in a directory and run marcxml.bat for more instructions. Make sure java is in your PATH. In this version the stylesheets and character conversion mappings are downloaded via http from LC's website therefore Internet access is required when using these utilities.

• MARCXML Conversion Stylesheets
  • MODS Conversion
    • MARCXML to MODS Stylesheet (Version 3.7--Coming Soon)
    • MARCXML to MODS Stylesheet (Version 3.6)
    • MARCXML to MODS Stylesheet (Version 3.5)
    • MARCXML to MODS Stylesheet (Version 3.4)
    • MARCXML to MODS Stylesheet (Version 3.3)
    • MARCXML to MODS Stylesheet (Version 3.2)
    • MARCXML to MODS Stylesheet (Version 3.1)
    • MARCXML to MODS Stylesheet (Version 3.0)
    • MODS to MARCXML Stylesheets
  • Dublin Core Conversion
    • MARCXML to RDF Encoded Simple Dublin Core Stylesheet
    • MARCXML to OAI Encoded Simple Dublin Core Stylesheet
    • MARCXML to SRW Encoded Simple Dublin Core Stylesheet
    • Dublin Core to MARCXML Stylesheet
  • OAI MARC Conversion
    • OAI MARC to MARCXML Stylesheet
  • ONIX Conversion
    • ONIX to MARCXML Stylesheet
  • MARC Conversion Utility Stylesheet
  • MARC DTD Conversion
    • MARCXML to MARC DTD Stylesheet (Bibliographic)
    • MARCXML to MARC DTD Stylesheet (Authority)
    • MARC DTD to MARCXML Stylesheet (Authority and Bibliographic)
• MARCXML HTML Stylesheets
  • MARC Tagged View
  • English Tagged View
• MARCXML MARC Validation Stylesheets
  • MARC Bibliographic Validator

MARC DTD (Document Type Definition)

In the mid 1990's, the Network Development and MARC Standards Office developed two SGML DTDs that supported the conversion of cataloging data from the MARC data structure to SGML (and back) without loss of data. As technology developed and changed, the SGML DTDs have been converted to XML DTDs and then essentially retired in favor of MARCXML. These DTDs differ from the MARCXML schema by specifying each MARC data element as an XML element. This approach results in very large DTDs.

• MARC to XML conversion utility for use with both MARC DTDs:
  • Readme.1st File for MARC to XML Conversion Utility
  • MARC to XML Conversion Utility (Zip file)

Presentations

• Standards Showcase: MODS, METS, MARCXML (ALA Annual 2006)

Related XML Formats

• MADS (Metadata Authority Description Standard)
• MODS (Metadata Object Description Standard)