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XML Schema: The W3C's Object-Oriented Descriptions for XML
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"If you've ever wondered how complex types are defined or how you can use regular expressions inside Schema, this is the book for you." PC Plus, Christmas edition 2002 "I recommend this book as a very useful guide and reference." - Rob Hughes, Cvu, August 2003
Kurzbeschreibung
For creating or using formal descriptions of XML vocabularies, this text offers a set of tools for defining acceptable document structures and content. An alternative to DTDs as the way to describe and validate data in an XML environment, the book should enable developers to create precise descriptions with a richer set of datatypes-such as booleans, numbers, currencies, dates and times - that are useful for modern applications. It explains the ins and outs of XML Schema, including design choices, best practices, and limitations. Particularly valuable are discussions of how the type structures fit with existing database and object-oriented program contexts. With XML Schema, you can define acceptable content models and annotate those models with additional type information, making them more readily bound to programs and objects. 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. Examples are included that demonstrate the details necessary for precise vocabulary definitions. Topics covered within the book include: foundations of XML Schema syntax; flat, "russian-doll", and other schema approaches; working with simple and complex types in a variety of contexts; the built-in datatypes provided by XML Schema; using facets to extend datatypes, including regular expression-based patterns; using keys and uniqueness rules to limit how and where information may appear; creating extensible schemas and managing extensibility; and documenting schemas and extending XML schema capabilities. In addition to the explanatory content, XML Schema offers a complete reference to all parts of both the XML Schema structures and XML Schema datatypes specifications, as well as a glossary. Appendices explore the relationships between XML Schema and other tools for describing document structures, including DTDs, RELAX NG, and Schematron, as well as work in progress at the W3C to more tightly integrate XML Schema with existing specifications.
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36 von 36 Kunden fanden die folgende Rezension hilfreich
An Editing Nightmare
11. November 2003
Format:Taschenbuch
This book had potential to be a definitive guide to XML schema. This is not the kind of book you can pick up and read cover to cover (unless insomnia is a real condition for you, in which case this book may help). It is, by no means, a tutorial of XML schema - or even a reference. It's more of an exploratory academic walk of the W3C recommendation and all of its foibles and nuances. There is wealth of information in this book, if you can glean it out from inbetween the droning prose and historical diatribe.
O'Reilly should be shamefully embarassed for ever letting this book go to print in the condition it is. It is replete with errata, typos, and slopped together examples. This book is destined to frustrate those new to XML schema. An uncharacteristicly poor level of quality for O'Reilly.
51 von 54 Kunden fanden die folgende Rezension hilfreich
Excellent for experienced developers
29. Juli 2002
Format:Taschenbuch
Having recently read "Definitive XML Schema" by Priscilla Walmsley I thought I'd learned all I needed to know about XML Schema. That book is more tutorial in tone and content, while this one quickly dispenses with the background material and gets into the technical details. In fact, by chapter 2 you're already developing a schema and the subsequent chapters drill deeper into the mechanics of XML Schema.
I like the way each facet, factor and detail of XML schema is covered, including clear descriptions of data types, a direct linkage to XML-based databases, and all of the building blocks along the way. More importantly, the author provides multiple approaches to developing schemas, and sufficiently covers the syntactical requirements and specifications to allow you to become proficient in creating them for real applications.
The book is fast-paced and you will need to be familiar with XML and its related vocabularies in order to follow this book. If you need a more introductory, tutorial-based book get "Definitive XML Schema" by Priscilla Walmsley. However, if you understand the fundamentals of relational databases, are currently developing DTDs and understand XML, this book is better suited to your experience level and is the one I recommend.
21 von 21 Kunden fanden die folgende Rezension hilfreich
Beginners should definitely look elesewhere
14. August 2003
Format:Taschenbuch
Let's face it; the XML Schema recommendations are complex, academic and often arcane. The book attempt to provide a quite in depth coverage within a limited amount of pages, the result is a solid amount of info, but definitely a dry reading, not practical oriented, almost academic. The author assume a good understanding of XML and its related technologies, it's a useful, detailed book, but beginners should definitely look elesewhere
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