RFC 3688 (rfc3688) - Page 1 of 8

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Network Working Group                                        M. Mealling
Request for Comments: 3688                                VeriSign, Inc.
BCP: 81                                                     January 2004
Category: Best Current Practice


                         The IETF XML Registry

Status of this Memo

   This document specifies an Internet Best Current Practices for the
   Internet Community, and requests discussion and suggestions for
   improvements.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2004).  All Rights Reserved.

Abstract

   This document describes an IANA maintained registry for IETF
   standards which use Extensible Markup Language (XML) related items
   such as Namespaces, Document Type Declarations (DTDs), Schemas, and
   Resource Description Framework (RDF) Schemas.

1.  Introduction

   Over the past few years, the Extensible Markup Language (XML)
   [W3C.REC-xml] has become a widely used method for data markup.  There
   have already been several IETF Working Groups that have produced
   standards that define XML Document Type Definitions (DTDs), XML
   Namespaces [W3C.REC-xml-names], and XML Schemas [W3C.REC-xmlschema-
   1]. Each one of these technologies uses Uniform Resource Identifiers
   (URIs) [RFC 2396] and other standardized identifiers to identify
   various components.

   For example, while it has been the practice within some standards
   that use Document Type Definitions (DTDs) to forego the use of the
   PUBLIC identifiers in favor of 'well known' SYSTEM identifiers, it
   has proven to be more trouble than its worth to attempt to
   standardize SYSTEM identifiers.  The result is that several IETF
   standards that have simply created non-resolvable URIs in order to
   simply identify but not resolve the DTD for some given XML document.

   This document seeks to standardize and improve these practices by
   creating an IANA maintained registry of XML element identifiers so
   that document authors and implementors have a well maintained and




Mealling                 Best Current Practice
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