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+Network Working Group K. Best
+Request for Comments: 3121 OASIS, Inc.
+Category: Informational N. Walsh
+ Sun Microsystems, Inc.
+ June 2001
+
+
+ A URN Namespace for OASIS
+
+Status of this Memo
+
+ This memo provides information for the Internet community. It does
+ not specify an Internet standard of any kind. Distribution of this
+ memo is unlimited.
+
+Copyright Notice
+
+ Copyright (C) The Internet Society (2001). All Rights Reserved.
+
+Abstract
+
+ This document describes a URN (Uniform Resource Name) namespace that
+ is engineered by the Organization for the Advancement of Structured
+ Information Standards (OASIS) for naming persistent resources
+ published by OASIS (such as OASIS Standards, XML (Extensible Markup
+ Language) Document Type Definitions, XML Schemas, Namespaces,
+ Stylesheets, and other documents).
+
+1. Introduction
+
+ The Organization for the Advancement of Structured Information
+ Standards (OASIS) produces many kinds of documents: specifications,
+ working drafts, technical resolutions, schemas, stylesheets, etc.
+
+ OASIS wishes to provide global, distributed, persistent, location-
+ independent names for these resources.
+
+ The Extensible Markup Language (XML) requires that all resources
+ provide a system identifier, which must be a URI, in addition to an
+ optional public identifier (which provides an alternate mechanism for
+ constructing identifiers) and many evolving specifications require
+ authors to identify documents by URI alone (XML Namespaces, XML
+ Schema, XSLT, etc.).
+
+ Motivated by these observations, OASIS would like to assign URNs to
+ some resources in order to retain unique, permanent location-
+ independent names for them.
+
+
+
+
+Best & Walsh Informational [Page 1]
+
+RFC 3121 A URN Namespace for OASIS June 2001
+
+
+ This namespace specification is for a formal namespace.
+
+2. Specification Template
+
+ Namespace ID:
+
+ "oasis" requested.
+
+ Registration Information:
+
+ Registration Version Number: 3
+ Registration Date: 2001-02-05
+
+ Declared registrant of the namespace:
+
+ Karl Best
+ OASIS - Organization for the Advancement of Structured
+ Information Standards
+ Post Office Box 455
+ Billerica, MA USA 01821
+
+ Phone: +1 (978) 667 5115
+
+ Declaration of structure:
+
+ The Namespace Specific String (NSS) of all URNs assigned by OASIS
+ will have the following hierarchical structure:
+
+ There are two branches at the top of the hierarchy: "names" and
+ "member".
+
+ The Names Hierarchy
+
+ The NSS in the names hierarchy begins with a document class
+ identifier. There are three classes of identifiers:
+
+ "specification", "tc", and "technical".
+
+ Specifications
+
+ The "specification" hierarchy is for OASIS Specifications. The
+ general structure of the NSS in the specification hierarchy has
+ the form:
+
+ urn:oasis:names:specification:{specification-id}
+ :{type}{:subtype}?:{document-id}
+
+
+
+
+
+Best & Walsh Informational [Page 2]
+
+RFC 3121 A URN Namespace for OASIS June 2001
+
+
+ where "specification-id" is a unique identifier for the
+ specification, "type" identifies the document type (document,
+ schema, stylesheet, entity, xmlns, etc.), the optional
+ "subtype" provides additional information about the document
+ type (for example, stylesheet or schema language), and
+ "document-id" is a unique identifier for the document.
+
+ The Director of Technical Operations at OASIS assigns document
+ types, subtypes, and all unique identifiers.
+
+ Technical Committee Work Products
+
+ The "tc" hierarchy is for work products of OASIS Technical
+ Committees. The general structure of the NSS in the tc
+ hierarchy has the form:
+
+ urn:oasis:names:tc:{tc-id}:{type}{:subtype}?:{document-id}
+
+ where "tc-id" is a unique identifier for the Technical
+ Committee, and the remaining fields are assigned as per the
+ specification hierarchy.
+
+ Technical Papers
+
+ The "technical" hierarchy identifies legacy documents
+ (Technical Notes, Resolutions, Memoranda, and Research Papers).
+ The general structure of the NSS in the "technical" hierarchies
+ has the form:
+
+ urn:oasis:names:technical:{document-type}
+ :{document-id}:{amendment-id}
+
+ The document type is one of the following: "note",
+ "resolution", "memorandum", or "researchpaper".
+
+ The document and amendment identifiers are derived from the
+ legacy system for naming these documents. The document
+ identifier consists of a two digit year and a sequential
+ number, the amendment identifier is the year of the amendment.
+
+ The Members Hierarchy
+
+ The NSS in the members hierarchy begins with a unique member
+ identifier assigned by OASIS. The string following the member
+ identifier is opaque. For example:
+
+ urn:oasis:member:A00024:x
+
+
+
+
+Best & Walsh Informational [Page 3]
+
+RFC 3121 A URN Namespace for OASIS June 2001
+
+
+ The member identifiers will be assigned by The Director of
+ Technical Operations at OASIS. The opaque string is defined by
+ the owner of the branch that begins with
+ "urn:oasis:member:{member-id}:".
+
+ Relevant ancillary documentation:
+
+ None
+
+ Identifier uniqueness considerations:
+
+ Identifier uniqueness will be enforced by the Director of
+ Technical Operations who assigns unique identifiers to all
+ documents identified by URN.
+
+ Identifier persistence considerations:
+
+ OASIS is committed to maintaining the accessibility and
+ persistence of all the resources that are assigned URNs.
+
+ Process of identifier assignment:
+
+ Assignment is limited to the owner and those authorities that are
+ specifically designated by the owner. OASIS will assign portions
+ of its namespace (specifically, those under the members hierarchy)
+ for assignment by other parties.
+
+ Process of identifier resolution:
+
+ The owner will distribute catalogs (OASIS TR9401 Catalogs) that
+ map the assigned URNs to resource identifiers (e.g., URLs). A
+ more interactive, online resolution system will also be deployed
+ in the near future.
+
+ The owner will authorize additional resolution services as
+ appropriate.
+
+ Rules for Lexical Equivalence:
+
+ URNs are lexically equivalent if they are lexically identical.
+
+ Conformance with URN Syntax:
+
+ No special considerations.
+
+
+
+
+
+
+
+Best & Walsh Informational [Page 4]
+
+RFC 3121 A URN Namespace for OASIS June 2001
+
+
+ Validation mechanism:
+
+ None specified. The owner will publish OASIS TR9401 Catalogs.
+ The presence of a URN in a catalog indicates that it is valid.
+
+ Scope:
+
+ Global
+
+3. Examples
+
+ The following examples are not guaranteed to be real. They are
+ listed for pedagogical reasons only.
+
+ urn:oasis:names:specification:docbook:dtd:xml:4.1.2
+ urn:oasis:names:tc:docbook:dtd:xml:docbook:5.0b1
+ urn:oasis:names:technical:memo:9502:1995
+ urn:oasis:member:A00024:x
+
+4. Security Considerations
+
+ There are no additional security considerations other than those
+ normally associated with the use and resolution of URNs in general.
+
+References
+
+ [1] Goldfarb, C. F., "ISO (International Organization for
+ Standardization) ISO 8879:1986(E) Information Processing -- Text
+ and Office Systems -- Standard Generalized Markup Language
+ (SGML)", 1986.
+
+ [2] W3C, XML WG, "Extensible Markup Language (XML) 1.0", February
+ 1998, <http://www.w3.org/TR/REC-xml>.
+
+ [3] W3C, Namespaces WG, "Namespaces in XML", January 1999,
+ <http://www.w3.org/TR/REC-xml-names>.
+
+ [4] OASIS, Entity Mgmt. TC, "Entity Management: OASIS Technical
+ Resolution 9401:1997 (Amendment 2 to TR 9401)", January 1994,
+ <http://www.oasis-open.org/html/a401.htm>.
+
+ [5] Moats, R., "URN Syntax", RFC 2141, May 1997.
+
+ [6] Mealling, M. and R. Daniel, "URI Resolution Services Necessary
+ for URN Resolution", RFC 2483, January 1999.
+
+
+
+
+
+
+Best & Walsh Informational [Page 5]
+
+RFC 3121 A URN Namespace for OASIS June 2001
+
+
+Authors' Addresses
+
+ Karl Best
+ OASIS, Inc.
+ P.O. Box 455
+ Billerica, MA 01821
+ US
+
+ EMail: karl.best@oasis-open.org
+
+
+ Norman Walsh
+ Sun Microsystems, Inc.
+ One Network Drive
+ MS UBUR02-201
+ Burlington, MA 01803-0902
+ US
+
+ EMail: Norman.Walsh@East.Sun.COM
+
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+Best & Walsh Informational [Page 6]
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+RFC 3121 A URN Namespace for OASIS June 2001
+
+
+Full Copyright Statement
+
+ Copyright (C) The Internet Society (2001). All Rights Reserved.
+
+ This document and translations of it may be copied and furnished to
+ others, and derivative works that comment on or otherwise explain it
+ or assist in its implementation may be prepared, copied, published
+ and distributed, in whole or in part, without restriction of any
+ kind, provided that the above copyright notice and this paragraph are
+ included on all such copies and derivative works. However, this
+ document itself may not be modified in any way, such as by removing
+ the copyright notice or references to the Internet Society or other
+ Internet organizations, except as needed for the purpose of
+ developing Internet standards in which case the procedures for
+ copyrights defined in the Internet Standards process must be
+ followed, or as required to translate it into languages other than
+ English.
+
+ The limited permissions granted above are perpetual and will not be
+ revoked by the Internet Society or its successors or assigns.
+
+ This document and the information contained herein is provided on an
+ "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
+ TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
+ BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
+ HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
+ MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+
+Acknowledgement
+
+ Funding for the RFC Editor function is currently provided by the
+ Internet Society.
+
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+Best & Walsh Informational [Page 7]
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