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Topic: XML Schema

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	XML - Wikipedia, the free encyclopedia
		An XML schema is a description of a type of XML document, typically expressed in terms of constraints on the structure and content of documents of that type, above and beyond the basic constraints imposed by XML itself.
		XML's regular structure and strict parsing rules allow software designers to leave parsing to standard tools, and since XML provides a general, data model-oriented framework for the development of application-specific languages, software designers need only concentrate on the development of rules for their data, at relatively high levels of abstraction.
		XML 1.0 and XML 1.1 differ in the requirements of characters used for element and attribute names: XML 1.0 only allows characters which are defined in Unicode 2.0, which includes most world scripts, but excludes those which were added in later Unicode versions.
	en.wikipedia.org /wiki/Xml (4832 words)

	XML Schema - Wikipedia, the free encyclopedia
		XML Schema, published as a W3C Recommendation in May 2001, is one of several XML schema languages.
		However, unlike most other schema languages, XML Schema was also designed with the intent of validation resulting in a collection of information adhering to specific datatypes, which can be useful in the development of XML document processing software, but which has also provoked criticism.
		After XML Schema-based validation, it is possible to express an XML document's structure and content in terms of the data model that was implicit during validation.
	en.wikipedia.org /wiki/XML_Schema (612 words)

	XML Schema Part 1: Structures Second Edition
		The purpose of XML Schema: Structures is to define the nature of XML schemas and their component parts, provide an inventory of XML markup constructs with which to represent schemas, and define the application of schemas to XML documents.
		The purpose of an XML Schema: Structures schema is to define and describe a class of XML documents by using schema components to constrain and document the meaning, usage and relationships of their constituent parts: datatypes, elements and their content and attributes and their values.
		XML Schema: Structures introduces a mechanism for signaling that an element should be accepted as ·valid· when it has no content despite a content type which does not require or even necessarily allow empty content.
	www.w3.org /TR/xmlschema-1 (8925 words)

	XML.com: Comparing XML Schema Languages
		In ordinary English, a schema is defined as "an outline or image universally applicable to a general conception, under which it is likely to be presented to the mind; as, five dots in a line are a schema of the number five; a preceding and succeeding event are a schema of cause and effect" (Websters).
		Most of the schema languages are too complex to "present to the mind" or to a program the instance documents that they describe, and, more importantly and less subjectively, they often focus on defining validation rules more than on modeling a class of documents.
		One of the key strengths of XML, sometimes called "late binding," is the decoupling of the writer and the reader of an XML document: this gives the reader the ability to have its own interpretation and understanding of the document.
	www.xml.com /pub/a/2001/12/12/schemacompare.html (1605 words)

	W3C XML Schema
		XML Schema was approved as a W3C Recommendation on 2 May 2001 and a second edition incorporating many errata was published on 28 October 2004; see reference list for pointers.
		The XML Schema WG is currently working towards the completion of XML Schema 1.1, which is intended to be mostly compatible with XML Schema 1.0 and to have approximately the same scope, but also to fix bugs and make whatever improvements we can, consistent with the constraints on scope and compatibility.
		XML Regular expressions We are distributing an efficient, open source Unicode regular expression pattern matcher in a C library.
	www.w3.org /XML/Schema (5043 words)

	Cover Pages: XML Schemas (Site not responding. Last check: 2007-11-07)
		XML Schema allows the author to determine which parts of a document may be validated, or identify parts of a document where a schema may apply.
		XML Schema Part 1: Structures and XML Schema Part 2: Datatypes provide the complete normative description of the XML Schema definition language, and the primer describes the language features through numerous examples which are complemented by extensive references to the normative texts.
		Since the XML Schema Recommendation (Part 0: Primer, Part 1: Structures, and Part 2: Datatypes) was first published in May, 2001, it has gained acceptance as the primary technology for specifying and constraining the structure of XML documents.
	www.oasis-open.org /cover/schemas.html (14472 words)

	oreilly.com -- Online Catalog: XML Schema
		An alternative to DTDs as the way to describe and validate data in an XML environment, XML Schema enables developers to create precise descriptions with a richer set of datatypes?such as booleans, numbers, currencies, dates and times?that are essential for today?s applications.
		Schemas combine the easy interchange of text-based XML with the more stringent requirements of data exchange, and make it easier to validate documents based on namespaces.
		XML Schema Syntax can be confusing at first, even to some experienced programmers.
	www.oreilly.com /catalog/xmlschema (916 words)

	XML Schema
		XML Spy is an excellent tool for almost anything related to XML and a good way to get your feet wet with XML schema.
		This gives a small taste of what XML schema is all about and some of the possibilities it presents.
		Of course, schema is a large, complex topic that is difficult to fully internalize at one sitting.
	www.developer.com /tech/article.php/1011291 (1250 words)

	Amazon.com: Definitive XML Schema: Books: Priscilla Walmsley (Site not responding. Last check: 2007-11-07)
		XML Schema is an incredibly powerful-and complex-document schema language, with such new capabilities as strong typing, modularity, inheritance, and identity constraints.
		But if you are like me, learning XML schema on the job and having trouble finding specific answers as you design a new schema or worse extend an exisiting schema, this book is certainly for you.
		While this is a thorough text, suitable for those new to XML schema, it is especially useful for those of us who need to create and maintain schema definitions in the real world.
	www.amazon.com /exec/obidos/tg/detail/-/0130655678?v=glance (1540 words)

	Academia Sinica Computing Centre's Schematron Home Page
		Jing is a high-quality validation library from the famous James Clark, who was the technical lead on XML, editor of the Xpath and ISO DSSL specifications, co-inventor of the RELAX NG schema language, and developer of some of the most popular Open Source softtware libraries: sgmls, nsgmls (SP), xt, xp, jade.
		XSD_Schtrn is a stylesheet for extracting schematron schema fragments embedded as appinfo in XML Schemas
		New DTD, W3C XML Schema schema and Schematron schema for Schematron 1.5.
	xml.ascc.net /resource/schematron/schematron.html#overview (2056 words)

	XML tutorial: DTD, XML Schema, and DSD
		Schemas and schema languages - defining the syntax of your own XML language
		Schema inclusion and redefinition - modularity and reuse
		Problems with XML Schema - 15 reasons why we haven't seen the last schema language
	www.brics.dk /~amoeller/XML/schemas (175 words)

	[No title]
		Auto-generate XML Schemas easily using Stylus Studio® 2006's numerous conversion and XML Schema generation utilities.
		Validate XML instance documents and Schemas against XSV, the XML Schema Validator — widely thought of as the XML Schema reference implementation.
		Either before or after transforming EDIFACT content, generated XML Schemas will make sure that we have all of the necessary components, our codes are all according to the standard codelists, and every little delimiter is in the right place.
	www.stylusstudio.com /xml_schema.html (488 words)

	MARC 21 XML Schema
		The Library of Congress' Network Development and MARC Standards Office is developing a framework for working with MARC data in a XML environment.
		As technology developed and changed, the SGML DTDs have been converted to XML DTDs and then essentially retired in favor of MARCXML.
		MARCXML schema by specifying each MARC data element as an XML element.
	www.loc.gov /standards/marcxml (362 words)

	SCHEMA.NET (Site not responding. Last check: 2007-11-07)
		The next few weeks will be spent gathering updated information and putting together the site infrastructure.
		If there are particular XML or RDF schemas you want to make sure are included, feel free to
		SCHEMA.NET was part of a family of XML-related sites I started in 1997 and was the first site dedicated to cataloging XML DTDs and Schemas.
	www.schema.net (106 words)

	xFront
		An XML Schema that lists all the countries (and oceans) worldwide
		An XML Schema that defines the legal format of ISBNs.
		An XML Schema containing simpleType definitions enumerating units of measure for temperature, length, weight, volume, area, cooking, and speed
	www.xfront.com (71 words)

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