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XML Listings
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141 | Displaying: 71 - 80 | Pages: << 1 2 3 4 5 6 7 8 9 10 >> |
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Validation specifications list permissible combinations of elements and attribute values to ensure the integrity of XML documents. Various validation strategies have been developed, such as Document Type Defintions (DTDs), XML Schema, RELAX, and TREX, to name a few. While each of these solutions is designed primarily for XML validation, there\'s no reason the same approach couldn\'t be applied to other validation requirements in your applications.
Updated: 05/12/2005
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The W3C XML Schema Definition Language was released as a Recommendation at the beginning of May, at the Tenth International World Wide Web Conference. After collective sighs of relief were heaved, it would be unrealistic to expect silence to descend on the topic.
Updated: 05/12/2005
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This article assumes you\'re familiar with XML Schemas and Web Methods Level of Difficulty 1 2 3 Download the code for this article: BusinessRules.exe (223KB) SUMMARY In an earlier article the authors showed how to build a custom WebMethods extension that provides XML Schema validation, a function that is lacking in ASP.NET. In the process they established a foundation for enforcing business rules during the deserialization of XML data.
Updated: 05/12/2005
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Is XML changing the way applications are being designed? And if so, what tools do you use to model these applications? The XML-Deviant considers these questions following a lengthy XML-DEV discussion. The Post-Schema-Delivery Period As Edd Dumbill noted in last week\'s XML-Deviant , the XML Schema specification may have been delivered, but the discussions are far from over. The Schema Working Group have delivered a meaty specification, and it will take some time for developers to digest. Expectations have already been raised about the features that may be delivered in Schema 1.1, and the prospect of Schema 2.0 has already been considered.
Updated: 05/12/2005
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Noting an increasing interest in XML Schemas on several mailing lists, this week the XML Deviant takes a look at some of the resources available to the aspiring schema developer. Documentation The first goal for anyone seeking to come to grips with XML Schemas is gathering useful reference material. The XML Schema Primer , a useful introduction and overview of the topic, is published by the Schema Working Group in response to requests from the community for additional documentation.
Updated: 05/12/2005
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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. This means that instead of creating a grammar for an XML document, a Schematron schema makes assertions applied to a specific context within the document. If the assertion fails, a diagnostic message that is supplied by the author of the schema can be displayed.
Updated: 05/12/2005
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What namespace prefix should I use in a W3C Schema? Although the W3 Schema specification uses the namespace prefix xsd:, it looks as though in current practice only xs: is used.Could you please confirm if this is the case and is the reason just that it is shorter?
Updated: 05/12/2005
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ADO.NET—the new version of the ADO library that the .NET Framework provides—introduces a revolutionary class called DataSet. The DataSet is an in-memory representation of one or more database entities, such as tables, columns, and relations. It\'s also much more: It manages XML data easily, allowing you to load an XML schema with related data and create an internal structure of tables, columns, and rows. You access data within the DataSet in the same way, whether you retrieve it from a database or an XML source. Moreover, the DataSet class provides a history state of its data that\'s useful for updating database tables and XML sources.
Updated: 05/12/2005
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Last week, the World Wide Web Consortium issued Scalable Vector Graphics (SVG) 1.0 as a Recommendation. SVG, as its name implies, is an XML application for describing two-dimensional graphics in the form of vector-based objects. As well as allowing normal 2D drawings, SVG is scriptable , enabling user interaction, and it incorporates animation capabilities from SMIL .Along with W3C XML Schema, SVG is one of the most important technologies to emerge from the W3C this year.
Updated: 05/12/2005
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In this section, we talk about DTDs and XML Schema, two ways to enforce rules an XML document must follow. A DTD is a grammar for an XML document, defining which tags may appear where and in what order, with what attributes, etc. XML Schema is the next generation of DTD. With XML Schema, you can describe the data content of the document in terms of primitives such as numbers, dates, and simple regular expressions. The word schema means a blueprint or plan for structure, so we\'ll refer to DTDs and XML Schema collectively as schema where either applies
Updated: 05/12/2005
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XML Listings
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Total:
141 | Displaying: 71 - 80 | Pages: << 1 2 3 4 5 6 7 8 9 10 >> |
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