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+Network Working Group                                            K. Best
+Request for Comments: 3120                                   OASIS, Inc.
+Category: Informational                                         N. Walsh
+                                                  Sun Microsystems, Inc.
+                                                               June 2001
+
+
+                      A URN Namespace for XML.org
+
+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 stored
+   in the XML.org repository (such as XML (Extensible Markup Language)
+   Document Type Definitions, XML Schemas, Namespaces, Stylesheets, and
+   other documents).
+
+1. Introduction
+
+   The XML.org Registry is provided by XML.org as a public service where
+   XML schemas, DTDs, stylesheets, and other documents can be shared.
+   Documents are submitted to a repository then retrieved by others who
+   may want to use them.  These documents require unique identifiers.
+
+   Motivated by these observations, XML.org would like to assign URNs to
+   some resources in order to retain unique, permanent location-
+   independent names for them.
+
+   This namespace specification is for a formal namespace.
+
+2. Specification Template
+
+   Namespace ID:
+
+      "xmlorg" requested.
+
+
+
+
+
+Best & Walsh                 Informational                      [Page 1]
+
+RFC 3120              A URN Namespace for XML.org              June 2001
+
+
+   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
+      XML.org will have the following hierarchical structure:
+
+      There is one branch at the top of the hierarchy: "objects".
+
+      The Objects Hierarchy
+
+         The general structure of the NSS in the names hierarchy has the
+         form:
+
+            urn:xmlorg:objects:{type}{:subtype}?:{object-id}
+
+         where "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 "object-id" is a
+         unique identifier for the document.
+
+         The Director of Technical Operations at OASIS assigns document
+         types, subtypes, and all unique identifiers.
+
+   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.
+
+
+
+
+Best & Walsh                 Informational                      [Page 2]
+
+RFC 3120              A URN Namespace for XML.org              June 2001
+
+
+   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 may assign portions
+      of its namespace 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.
+
+   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:xmlorg:objects:schema:xmlschema:xcatalog
+         urn:xmlorg:objects:dtd:xml:docbook:v4.1.2
+
+
+
+
+
+
+Best & Walsh                 Informational                      [Page 3]
+
+RFC 3120              A URN Namespace for XML.org              June 2001
+
+
+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.
+
+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
+
+
+
+
+
+Best & Walsh                 Informational                      [Page 4]
+
+RFC 3120              A URN Namespace for XML.org              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 5]
+