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Namespace-based Validation Dispatching Language: XML Schema, Namespace Routing Language, AEX cfiXML
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| Please note that the content of this book primarily consists of articles
available from Wikipedia or other free sources online. Namespace-based
Validation Dispatching Language (NVDL) is an XML schema language for
validating XML documents that integrate with multiple namespaces. It is
an ISO/IEC standard, and it is Part 4 of the DSDL schema specification.
Much of the work on NVDL is based on the older Namespace Routing
Language. Most XML languages are based on a single XML namespace. The
expectation in these cases is that XML elements in a particular
namespace belong to that language, and elements in another namespace
belong to another language. Many XML languages allow the use of
arbitrary elements from other namespaces. The problem arises during the
attempt to validate these hybrid documents. Each language is defined by
a specific XML schema, but there is no linkage between the schemas. |
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