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Topic: Schematron

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	XML.com: An Introduction to Schematron
		The Schematron schema language differs from most other XML schema languages in that it is a rule-based language that uses path expressions instead of grammars.
		The third layer in the Schematron hierarchy is the pattern, declared using the
		Schematron can also be used to validate XML instance documents that use namespaces.
	www.xml.com /pub/a/2003/11/12/schematron.html (1620 words)

	schematron (Site not responding. Last check: 2007-10-14)
		This XSLT-based implementation is the successor to the Schematron 1.5 stylesheets in wide-spread use (and follows the same "meta-stylesheet" design pattern.) It implements almost all ISO Schematron (only abstract patterns are yet to be implemented) and is the result of collating years of suggested improvements from Schematron users; an implementation status document is available.
		Schematron Terminator is a validator that halts with an error code when the first error is detected.
		Schematron SVRL is a validator that generates Schematron Validator Report Language XML documents, which are specified by the ISO Schematron standard.
	www.schematron.com (577 words)

	Schematron - Wikipedia, the free encyclopedia
		The Schematron is an XML structure validation language for making assertions about the presence or absence of patterns in trees.
		Schematron can be used as an adjunct to DTDs, RELAX NG or XML Schema.
		Its inventor has described Schematron as "a feather duster to reach the parts other schema languages cannot reach".
	en.wikipedia.org /wiki/Schematron (156 words)

	Resource Directory for Schematron 1.5
		Schematron 1.5 users should consider moving over to Schematron 1.6 (which has variables and abstract patterns) in 2006 and to ISO Schematron (which has a different namespac) in 2007.
		Schematron validation is also possible from the context-sensitive tree editor, and the markup editor.
		is the namespace of the root element of a schematron schema.
	www.ascc.net /xml/schematron (988 words)

	<oXygen/> XML editor - Schematron
		The Schematron is a language system for specifying and declaring assertions about arbitrary patterns in XML documents, based on the presence or absense, names and values of elements and attributes along paths.
		Schematron does not specify any actions: it only allows assertions to be tested, for the parts of assertions to be given roles, for the assertions to be grouped into rules, for the rules to be grouped into patterns, and for the patterns to be activated in various phases.
		Schematron can be considered a front-end for specifying the targets of a transformation system (see [CIP].) Indeed, Schematron also may be considered to split the front-end into a rule-based framework (see [Schemarama] for an implementation of this) and a query language (in Schematron's case, XPath.)
	www.oxygenxml.com /schematron_specification.html (6335 words)

	Introducing the Schematron (Site not responding. Last check: 2007-10-14)
		The Schematron (see Resources for a link) is a validation and reporting methodology and toolkit developed by Rick Jeliffe, a member of the W3C Schema working group.
		The root element in the Schematron is the schema element in the appropriate namespace.
		We have already mentioned that Schematron, far from claiming to be a DTD replacement, is positioned as an entirely fresh approach to validation.
	uche.ogbuji.net /tech/articles/schematron.html (3546 words)

	Resource Directory for Schematron 1.5
		Schematron 1.5 users should consider moving over to Schematron 1.6 (which has variables and abstract patterns) in 2006 and to ISO Schematron (which has a different namespac) in 2007.
		For iteractive editing with Schematron, use the Academia Sincia Schematron in conjunction with James Clark's XT XSLT processor.
		is the namespace of the root element of a schematron schema.
	xml.ascc.net /schematron (988 words)

	Main Page - Schematron (Site not responding. Last check: 2007-10-14)
		Schematron is design to co-exist and augment with existing schema languages, providing a convenient way to easily express and test business and structural constraints.
		Schematron 1.5 is sometimes augmented with features from Schematron 1.6, which was never promoted but folded into the ISO Schematron effort.
		The newest is ISO Schematron, an 30-page international standard which uses the namespace http://purl.oclc.org/dsdl/schematron; its promoters hope that Schematron implementors and developers support it to help penetration and quality of implementation.
	www.eccnet.com /schematron/index.php/Main_Page (436 words)

	Discover the flexibility of Schematron abstract patterns
		Schematron is probably the most powerful XML schema language available (and it can be much more than just a schema language).
		Schematron was inspired by many of the ideas in XSLT, including the use of variables to help simplify code.
		The Schematron processor performs a preprocessor pass during which it does a literal string substitution of the parameter with the given value.
	www-106.ibm.com /developerworks/xml/library/x-stron.html (1743 words)

	XML Reference Guide > Schematron (Site not responding. Last check: 2007-10-14)
		Schematron is an interesting way of validating XML files because it is, quite frankly, not a schema at all.
		Instead, Schematron is almost more of a reporting tool, defining situations (based on XPath expressions) in which the tool is to provide either positive or negative feedback regarding the structure of the document.
		Schematron also enables you to create different phases, as well as nested reports, and enables you to embed Schematron information within other validation languages such as RELAX NG.
	www.informit.com /guides/content.asp?g=xml&seqNum=66 (655 words)

	XML.com: Validating XML with Schematron
		Schematron is an XML schema language, and it can be used to validate XML.
		Schematron, created by Rick Jelliffe, defines a set of rules and checks that are applied to an XML instance.
		Schematron takes a unique approach to schemas in that it focuses on validating document instances instead of declaring a schema (as the other schema languages do).
	www.xml.com /pub/a/2000/11/22/schematron.html (860 words)

	Academia Sinica Computing Centre's Schematron Home Page
		ISO Schematron is the result of enhancing Schematron, the leading assertion language, with improvements gleaned from other, subsequent similar languages and from multiple developers on all the most important modern platforms, and from almost five years of use.
		Schematron featured in three papers at XML Europe 2002 Conference in Barcelona: a comparison of Schematron and XCSL, a disussion on progressive validation, and a discussion on Schema Languages.
		New DTD, W3C XML Schema schema and Schematron schema for Schematron 1.5.
	www.ascc.net /xml/resource/schematron/schematron.html (2077 words)

	O'Reilly Media -- Bookstore: Schematron
		Schematron is a rule-based XML schema language, offering flexibility and power that W3C XML schema, RELAX NG, and DTDs simply can't match.
		You need Schematron and can't settle for other languages if you have to check rules that go beyond checking the document structures (i.e., checking that an element bar is included in element foo) and their datatypes.
		Schematron is also the right tool to use if you have to raise user-friendly error messages rather than depend on error messages that are generated by a schema processor and that are often obscure.
	www.oreilly.com /catalog/9780596527716 (483 words)

	Schematron Validator for RSS
		Schematron is a schema language that allows a document to be validated by testing it against a set of patterns (XPath expressions).
		Schematron validation rules allow the author to specify a helpful error message which will be provided to the user if an error is encountered.
		A Schematron schema is used to generate an XSLT stylesheet which is used to actually apply the validation rules to the input document.
	home.freeuk.com /leigh.dodds/rss_validator (569 words)

	A hands-on introduction to Schematron
		Schematron is useful whenever you wish to apply and check against rules for the contents of XML documents.
		Schematron is extraordinarily flexible in the variety of rules you can express, and it's even more expressive than other schema languages such as DTD, W3C XML Schema (WXS) and RELAX NG.
		Schematron is a language that allows you to directly express rules without creating a whole grammatical infrastructure.
	www.ibm.com /developerworks/edu/x-dw-xschematron-i.html (341 words)

	xmlhack: Schematron: An Interview with Rick Jelliffe
		Schematron, a schema language that takes a very different approach from every other XML schema language proposed so far.
		Schematron rejects the idea that the result of validation is a binary valid/invalid.
		Schematron tries to be as easily implementable as possible, and implementable on top of XSL in particular.
	xmlhack.com /read.php?item=121 (2044 words)

	Apply Schematron constraints to XForms documents automatically
		This XPath expression enforces the constraint you saw in the Schematron document -- that the sum of the values of elements A and B must be equal to 100.
		The other Schematron option provided in the XML Form Generator preferences (Figure 1), Generate validation message outputs from schematron messages, makes use of this mechanism to conditionally display the messages given in the Schematron document for individual asserts and reports.
		Since the Schematron document itself is made available to the form as instance data, you're free to bind controls to nodes in the Schematron document.
	www-128.ibm.com /developerworks/xml/library/x-xfrmschematron (2557 words)

	schematron (Site not responding. Last check: 2007-10-14)
		Schematron SVRL is an implementation of SVRL for XSLT.
		Schematron Text is a validator that gives simple text output when errors (failed assertion or successful report) is found.
		Schematron Terminitor is a validator that terminates when the first error (failed assertion or successful report) is found.
	www.schematron.com /validators.html (724 words)

	Schematron: validating XML using XSLT
		Schematron [Schematron] is a structural based validation language, defined by Rick Jelliffe, as an alternative to existing grammar based approaches.
		Schematron is open source, and is (at the time of writing) being migrated to SourceForge to better manage its development by a rapidly growing community of users.
		Schematron is not meant as a replacement for other schema languages; it is not expected to be easily mappable onto database schemas or programming language constructs.
	www.ldodds.com /papers/schematron_xsltuk.html (4971 words)

	Combining Schematron with other XML Schema languages (Site not responding. Last check: 2007-10-14)
		Schematron is a rule-based schema language and although you can define structure using Schematron it can often be a bit cumbersome.
		Schematron is a very good complement to both W3C XML Schema and RELAX-NG and there seems little that cannot be validated by the combination.
		The ability to combine embedded Schematron rules is not unique to W3C XML Schema and RELAX-NG and in fact it should be possible in all XML Schema languages the uses XML syntax and have an extensibility mechanism.
	www.topologi.com /public/Schtrn_XSD/Paper.html (5901 words)

	RE: Schematron: Categories of Usage?
		Author specified error messages: Schematron allows the schema author to write the error messages, thus the errors can be reported at a higher (operational/user) level.
		Bryan has identified another way that Schematron may be used for checking data in an XML instance document: Algorithmic Checking: the validity of data in an XML instance document is determined not by mere examination or comparison of the data, but requires performing an algorithm on the data.
		Actually because of the way schematrons assert works one can do checks on sequences where the possible upper bound is known but not if the upper bound is actually reached.
	www.stylusstudio.com /xmldev/200701/post50250.html (1178 words)

	Schematron Implementer's FAQ - O'Reilly XML Blog
		I think Schematron has a really bright future, because of the rise of highly generic markup languages that use attribute values for semantic categorization.
		Schematron is the only XML schema language I am aware of that has a built-in idea of schemas for information independent of the representation (abstract patterns).
		Schematron is now gaining wide acceptance in the London Insurance Market, encouraged by Lloyds of London who have commissioned the building of "Market Schematrons", being distributed free of charge to companies to ease the validation of business messages flowing between brokers and insurers.
	www.oreillynet.com /xml/blog/2006/06/schematron_implementers_faq.html (467 words)

	schematron (Site not responding. Last check: 2007-10-14)
		Schematron featured in three papers at XML Europe 2002 Conference in Barcelona: a comparison of Schematron and XCSL, a disussion on progressive validation, and a discussion on Schema Languages.
		Eddie Robertsson's XSD_Schtrn is a stylesheet for extracting schematron schema fragments embedded as appinfo in XML Schemas <;appinfo> elements beta.
		New DTD, W3C XML Schema schema and Schematron schema for Schematron 1.5.
	www.schematron.com /news_archive.html (1035 words)

	Schematron Validator for RSS
		Schematron is a schema language that allows a document to be validated by testing it against a set of patterns (XPath expressions).
		Schematron validation rules allow the author to specify a helpful error message which will be provided to the user if an error is encountered.
		A Schematron schema is used to generate an XSLT stylesheet which is used to actually apply the validation rules to the input document.
	ldodds.com /rss_validator (569 words)

	schematron (Site not responding. Last check: 2007-10-14)
		There are only 6 basic elements in ISO Schematron which makes it very easy to learn, especially if you already know XPaths.
		This is probably not the most useful schema: it only tells you what is wrong with an empty document rather than checking a full Schematron schema.
		However, it does show that there are many different kinds of schemas possible: some of them similar to DTDs and some of them very different.
	www.schematron.com /elements.html (215 words)

	Schematron Conformance Problem
		We assume that you are familiar with the basics of Schematron, which is a powerful XML schema language in which validity constraints are defined using XPath expressions.
		The fact that the SCP is undecidable means that a Schematron authoring tool (i.e., an editor) would not be able to analyze the user's schema and always let the user know whether or not there are any XML documents that conform to the schema.
		The input to the new algorithm is a Schematron schema, which we'll call S. We pass S and another Schematron schema, which we'll call T, as inputs to the algorithm that solves the SIP.
	www.unidex.com /scp/index.htm (2989 words)

	schematron (Site not responding. Last check: 2007-10-14)
		This means, in effect, that all existing Schematron implementations need to be changed to support the new namespace (or both the old and the new.) However, it has the advantage, critical for a validation language, of increasing the chances that an implementation that accepts the namespace has been written according to the ISO specification.
		In the early days of Schematron, experimentation was encouraged and there are many partial implementations of Schematron 1.5.
		In Schematron 1.5, there was a confusion between attributes providing names or titles for the important elements.
	www.schematron.com /spec.html (416 words)

	Cover Pages: Schematron: XML Structure Validation Language Using Patterns in Trees
		Annex B is a normative annex providing the ISO Schematron schema for constraints in ISO Schematron that cannot be expressed by the schema of Annex A. Annex C is a normative annex providing the default query language binding to XSLT.
		Schematron is a host language for many potential means of accessing data (which could include XML or something else, such as flat text or database formats).
		The Schematron is based on a simple action: First, find a context nodes in the document (typically an element) based on XPath path criteria; Then, check to see if some other XPath expressions are true, for each of those nodes." For an overview of the Schematron, see (1) "Introducing the Schematron.
	xml.coverpages.org /schematron.html (8947 words)

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