Skip to main content

Metadata standards: Encoding schemes

A guide to metadata standards across various industries, asset types, and professional communities.

XML

XML Validators

XMP

ONIX

METS

MIX

NISO Metadata for Images in XML Schema
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.