Network Working Group R. Denenberg, Ed. Internet-Draft Library of Congress Intended status: Informational P. Saint-Andre, Ed. Expires: October 31, 2010 Cisco April 29, 2010 The Media Types application/mods+xml, application/mads+xml, application/ mets+xml, application/marcxml+xml, application/sru+xml draft-denenberg-mods-etc-media-types-02 Abstract 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. Status of this Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on October 31, 2010. Copyright Notice Copyright (c) 2010 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect Denenberg & Saint-Andre Expires October 31, 2010 [Page 1] Internet-Draft Library of Congress Media Types April 2010 to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Registration for mods+xml . . . . . . . . . . . . . . . . . . 4 3. Registration for mads+xml . . . . . . . . . . . . . . . . . . 5 4. Registration for mets+xml . . . . . . . . . . . . . . . . . . 6 5. Registration for marcxml+xml . . . . . . . . . . . . . . . . . 7 6. Registration for sru+xml . . . . . . . . . . . . . . . . . . . 8 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9 8. Security Considerations . . . . . . . . . . . . . . . . . . . 9 9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 9 9.1. Normative References . . . . . . . . . . . . . . . . . . . 9 9.2. Informative References . . . . . . . . . . . . . . . . . . 10 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 10 Denenberg & Saint-Andre Expires October 31, 2010 [Page 2] Internet-Draft Library of Congress Media Types April 2010 1. Introduction The Library of Congress, on behalf of and in collaboration with various components of the metadata and information retrieval community, has issued specifications which define formats for representation of various forms of information including metadata and search results. This memo provides information about the Media Types associated with several of these formats, all of which are XML schemas. MODS: Metadata Object Description Schema. An XML schema for a bibliographic element set that may be used for a variety of purposes, and particularly for library applications. MADS: Metadata Authority Description Schema. An XML schema for an authority element set used to provide metadata about agents (people, organizations), events, and terms (topics, geographics, genres, etc.). It is a companion to the MODS Schema. METS: Metadata Encoding and Transmission Standard. An XML schema for encoding descriptive, administrative, and structural metadata regarding objects within a digital library. MARCXML MARC21 XML Schema. An XML schema for the direct XML representation of the MARC format (for which there already exists a media type, application/marc; see [RFC2220]). By "direct XML representation" we mean that it encodes the actual MARC data within XML. (This is in contrast to MODS: MARC uses codes for its element names; MODS represents the same information but uses semantically meaningful names while MARCXML uses the MARC codes.) SRU: Search/Retrieve via URL Response Format. An XML schema for the SRU response. SRU is a protocol, and the media type sru+xml pertains specifically to the default SRU response. The SRU response may be supplied in any of a number of suitable schemas, RSS, ATOM, for example, and the client identifies the desired format in the request, hence the need for a media type. This mechanism will be introduced in SRU 2.0; in previous versions (that is, all versions to date; 2.0 is in development) all responses are supplied in the existing default format, so no media type was necessary. SRU 2.0 is being developed within the Organization for the Advancement of Structured Information Standards (OASIS). Denenberg & Saint-Andre Expires October 31, 2010 [Page 3] Internet-Draft Library of Congress Media Types April 2010 2. Registration for mods+xml MIME media type name: application MIME subtype name: mods+xml Required parameters: None Optional parameters: (charset) This parameter has semantics identical to the charset parameter of the "application/xml" media type as specified in [RFC3023]. Encoding considerations: Identical to those of "application/xml" as described in [RFC3023]. Security considerations: The same security considerations as described in Section 10 of [RFC3023]. Interoperability considerations: There are no known interoperability issues. Published specification: [MODS-SCHEMA], [MODS] Applications which use this media type: Various MODS conformant toolkits use this media type. Additional information: Magic number(s): None File extension(s): .mods Macintosh file type code(s): TEXT Person and email address to contact for further information: Ray Denenberg Intended usage: COMMON Restrictions on usage: None Author/Change controller: The MODS specification was developed by the Library of Congress and is maintained by the Library of Congress in conjunction with the MODS Editorial Committee which has change control over the specification. Denenberg & Saint-Andre Expires October 31, 2010 [Page 4] Internet-Draft Library of Congress Media Types April 2010 3. Registration for mads+xml MIME media type name: application MIME subtype name: mads+xml Required parameters: None Optional parameters: (charset) This parameter has semantics identical to the charset parameter of the "application/xml" media type as specified in [RFC3023]. Encoding considerations: Identical to those of "application/xml" as described in [RFC3023]. Security considerations: The same security considerations as described in Section 10 of [RFC3023]. Interoperability considerations: There are no known interoperability issues. Published specification: [MADS-SCHEMA], [MADS] Applications which use this media type: Various MADS conformant toolkits use this media type. Additional information: Magic number(s): None File extension(s): .mads Macintosh file type code(s): TEXT Person and email address to contact for further information: Ray Denenberg Intended usage: COMMON Restrictions on usage: None Author/Change controller: The MADS specification was developed by the Library of Congress and is maintained by the Library of Congress in conjunction with the MODS Editorial Committee which has change control over the specification. Denenberg & Saint-Andre Expires October 31, 2010 [Page 5] Internet-Draft Library of Congress Media Types April 2010 4. Registration for mets+xml MIME media type name: application MIME subtype name: mets+xml Required parameters: None Optional parameters: (charset) This parameter has semantics identical to the charset parameter of the "application/xml" media type as specified in [RFC3023]. Encoding considerations: Identical to those of "application/xml" as described in [RFC3023]. Security considerations: The same security considerations as described in Section 10 of [RFC3023]. Interoperability considerations: There are no known interoperability issues. Published specification: [METS-SCHEMA], [METS] Applications which use this media type: Various METS conformant toolkits use this media type. Additional information: Magic number(s): None File extension(s): .mets Macintosh file type code(s): TEXT Person and email address to contact for further information: Ray Denenberg Intended usage: COMMON Restrictions on usage: None Author/Change controller: The METS specification was developed by the Library of Congress and is maintained by the Library of Congress in conjunction with the METS Editorial Board as an initiative of the Digital Library Federation. Denenberg & Saint-Andre Expires October 31, 2010 [Page 6] Internet-Draft Library of Congress Media Types April 2010 5. Registration for marcxml+xml MIME media type name: application MIME subtype name: marcxml+xml Required parameters: None Optional parameters: (charset) This parameter has semantics identical to the charset parameter of the "application/xml" media type as specified in [RFC3023]. Encoding considerations: Identical to those of "application/xml" as described in [RFC3023]. Security considerations: The same security considerations as described in Section 10 of [RFC3023]. Interoperability considerations: There are no known interoperability issues. Published specification: [MARCXML-SCHEMA], [MARCXML] Applications which use this media type: Various MARCXML conformant toolkits use this media type. Additional information: Magic number(s): None File extension(s): .mrcx Macintosh file type code(s): TEXT Person and email address to contact for further information: Ray Denenberg Intended usage: COMMON Restrictions on usage: None Author/Change controller: The MARCXML standard is driven by the MARC standards, maintained at the Library of Congress. Denenberg & Saint-Andre Expires October 31, 2010 [Page 7] Internet-Draft Library of Congress Media Types April 2010 6. Registration for sru+xml MIME media type name: application MIME subtype name: sru+xml Required parameters: None Optional parameters: (charset) This parameter has semantics identical to the charset parameter of the "application/xml" media type as specified in [RFC3023]. Encoding considerations: Identical to those of "application/xml" as described in [RFC3023]. Security considerations: The same security considerations as described in Section 10 of [RFC3023]. Interoperability considerations: There are no known interoperability issues. Published specification: [SRU-SCHEMA], [SRU] Applications which use this media type: Various SRU conformant toolkits use this media type. Additional information: Magic number(s): None File extension(s): .sru Macintosh file type code(s): TEXT Person and email address to contact for further information: Ray Denenberg Intended usage: COMMON Restrictions on usage: None Author/Change controller: The SRU specification for versions earlier than 2.0 is maintained at the Library of Congress, in conjunction with the SRU Editorial Board. Version 2.0 (for which the sru+xml media type pertains) is being developed within OASIS. Denenberg & Saint-Andre Expires October 31, 2010 [Page 8] Internet-Draft Library of Congress Media Types April 2010 7. IANA Considerations IANA is requested to register five media types described in Sections 2, 3, 4, 5, and 6 in the MIME media type registry (in the Standards Tree). 8. Security Considerations This document only registers new media types. Their relevant security considerations are listed in the registeration templates in Sections 2, 3, 4, 5, and 6. This document does not have any additional security considerations. 9. References 9.1. Normative References [RFC3023] Murata, M., St. Laurent, S., and D. Kohn, "XML Media Types", RFC 3023, January 2001. [MADS-SCHEMA] Denenberg, R., "MADS Schema", . [MADS] Denenberg, R., "Metadata Authority Description Schema", . [MARCXML-SCHEMA] Denenberg, R., "MARCXML Schema", . [MARCXML] Denenberg, R., "MARCXML MARC21 XML Schema", . [METS-SCHEMA] Denenberg, R., "METS Schema", . [METS] Denenberg, R., "Metadata Encoding and Transmission Standard", . [MODS-SCHEMA] Denenberg, R., "MODS Schema", . [MODS] Denenberg, R., "Metadata Object Description Schema", Denenberg & Saint-Andre Expires October 31, 2010 [Page 9] Internet-Draft Library of Congress Media Types April 2010 . [SRU-SCHEMA] Denenberg, R., "SRU Schema", . [SRU] Denenberg, R., "Search/Retrieve via URL Response Format", . 9.2. Informative References [RFC2220] Guenther, R., "The Application/MARC Content-type", RFC 2220, October 1997. Authors' Addresses Ray Denenberg (editor) Library of Congress 101 Independence Ave, SE Washington, DC 20540 USA Phone: (202) 707-5795 Email: rden@loc.gov Peter Saint-Andre (editor) Cisco Email: psaintan@cisco.com Denenberg & Saint-Andre Expires October 31, 2010 [Page 10]