See the Sun Microsystems web site for description of the XMLspec DTD: "The XMLspec DTD was originally designed to be used to encode the XML specification document itself, even before the first XML processor existed! It was probably one of the first XML DTDs to be fully compliant with the XML specification, to be used in a collaborative authoring situation, and to drive the generation of multiple different outputs from the same source.

XML-based development projects often require the development of a Document Type Definition (DTD), which defines the XML code used in an XML document or application. Even if you are customizing an existing DTD like the DocBook DTD, documenting the DTD is a best practice for a number of reasons, including:

The ArchStudio project under development in the Department of Information and Computer Science, University of California, Irvine has created xADL as for its "enabling architecture-centric tool integration with XML." ArchStudio 2.0 is "an extensible, integrated software architecture development environment that uses an XML-based representation for the underlying architecture.

JRefEntry DTD. From Norman Walsh, The JRefEntry DTD is a customization of the DocBook RefEntry model. The purpose of this customization is to mirror the order and nature of structured comment tags in JavaDoc documentation. See the README. The version 1.0 distribution [JRefEntry DTD V1.0] of the JRefEntry DTD consists of the following files: [1] README.xml (The README file); [2] jrefentry.dtd (The DTD); [3] test.xml (A test document).

A posting from James Clark to the XML-DEV List announces a new release of Trang, Clark's Multi-Format Schema Converter based on RELAX NG. The conversion tool supports several schema languages for XML, including RELAX NG (XML syntax), RELAX NG compact syntax, XML 1.0 DTDs, W3C XML Schema.

Short for document type definition. A DTD states what tags and attributes are used to describe content in an SGML, XML or HTML document, where each tag is allowed, and which tags can appear within other tags. For example, in a DTD one could say that LIST tags can contain ITEM tags, but ITEM tags cannot contain LIST tags. In some editors, when authors are inputting information, they can place tags only where the DTD allows. This ensures that all the documentation is formatted the same way. Applications will use a document's DTD to properly read and display a document's contents. Changes in the format of the document can be easily made by modifying the DTD.

First Call Corp., a Thomson Financial company, and B-Bop, The XML Platform Company, today released a jointly created 'FAML' Document Type Definition (DTD) for financial research documents utilizing Extensible Markup Language (XML). This FAML DTD for 'Financial Research Documents' ("-//B-Bop Associates//DTD FAML v1.0//EN") provides an initial framework for structuring the content of such documents.

This is a list of the DTD quick reference.

This is a collection of notes for configuring the Catalog Entity Resolver with your favourite XML tools (validating parsers and editors). All XML documents declare their ruleset - the Document Type Definition (DTD). When Forrest processes the documents, it uses the Resolver to find Forrest's local copies of the DTDs, rather than trundling out onto the network.

In a presentation at XML Europe 2000, Henry Thompson examined current "best practice" in DTD design and provided a reinterpretation using XML Schemas. The talk focused on the capability of schemas for defining complex types and asserting equivalence among classes of elements.

This is a list of useful DTD/XML schema links.

DTDGenerator is a program that takes an XML document as input and produces a Document Type Definition (DTD) as output. The aim of the program is to give you a quick start in writing a DTD. The DTD is one of the many possible DTDs to which the input document conforms. Typically you will want to examine the DTD and edit it to describe your intended documents more precisely.

The XML version of the movies database should contain 7 XML files, with their corresponding dtd files. The intent is to eventually also have them available in .rdf form for the DAML Ontoagents project. Background about these files is found on a documentation file for the earlier TeX and HTML versions.

This short document details the first attempt of XML usage for tabular output description following the Strasbourg meeting June 23-25, 1999, and discussions since that time. This proposition was presented at the IXth ADASS Meeting in October 1999 at the Hilton Waikoloa Village, Hawaii

"ONIX International is the international standard for representing and communicating book industry product information in electronic form, incorporating the core content which has been specified in national initiatives such as BIC Basic and AAP's ONIX Version 1. Release 1.1 is the first full release of ONIX International, and incorporates the results of practical trials and extensive review in both the US and the UK during June 2000.

This document describes an additional TEI element which may be used to encode rich textual descriptions of manuscript material of any kind. It is intended primarily for the detailed cataloguing of medieval and early modern manuscript materials in the Western European tradition, although we believe it to be more generally applicable.

Publishers, aggregators, syndicators and other content companies are now ready to exchange content for secondary licensing using a standardized XML format -- the newly released PRISM specification, the PRISM Aggregator DTD (Document Type Definition) Version 1.0.

The purpose of a DTD is to define the legal building blocks of an XML document. It defines the document structure with a list of legal elements. A DTD can be declared inline in your XML document, or as an external reference.

This section covers some XML and DTD examples.

This little tool is here to help you to document your DTD's efficiently. It is a straightforward extension of the javadoc concept and a not so straightforward implementation of some of the concepts solidified by a half-God.