The Media Types application/mods+xml, application/mads+xml, application/mets+xml, application/marcxml+xml, and application/sru+xml
R. Denenberg · 2011
This document specifies Media Types for the following formats: MODS (Metadata Object Description Schema), MADS (Metadata Authority Description Schema), METS (Metadata Encoding and Transmission Standard), MARCXML (MARC21 XML Schema), and the SRU (Search/Retrieve via URL Response Format) Protocol response XML schema. These are all XML schemas providing representations of various forms of information including metadata and search results.