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Metadata for Images in XML (MIX) Library  of Congress

The Library of Congress' Network Development and MARC Standards Office, in partnership with the NISO Technical Metadata for Digital Still Images Standards Committee and other interested experts, is developing an XML schema for a set of technical data elements required to manage digital image collections. The schema provides a format for interchange and/or storage of the data specified in the Data Dictionary - Technical Metadata for Digital Still Images (ANSI/NISO Z39.87-2006). This schema is currently referred to as "NISO Metadata for Images in XML (NISO MIX)". MIX is expressed using the XML schema language of the World Wide Web Consortium. MIX is maintained for NISO by the Network Development and MARC Standards Office of the Library of Congress with input from users.

MIX Version 2.0 is now the current version of MIX.


MIX Schema & Documentation

MIX Example Documents

Tools & Utilities


Comments on the data elements should be sent to: Oya Y. Rieger.

Discussion of the schema may be shared by joining the MIX Forum ([email protected]), the development listserv for the schema. You may subscribe to this list by sending an email message to the Library of Congress Listserv address [email protected] with the message "SUBSCRIBE MIX".

By subscribing to this Listserv, you agree to the following: You are fully responsible for everything that you post and will follow the general rules of respectful civil discourse. The content of all comments is released into the public domain unless clearly stated otherwise. The Library of Congress does not control the content posted. The Library of Congress may decline to post messages that are off-topic, disruptive or for any reason whatever, without consent, and we further reserve the right, in our sole discretion, to remove a user's privilege to post content on this Listserv.

News & Announcements

MIX Version 1.0 is now the current version of MIX. Please send comments to the MIX Listserv (mentioned above).

MIX Icon (Metadata for Images in XML)Library of Congress Help Desk
October 21, 2022