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Namespace-based Validation Dispatching Language
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<p>Namespace-based Validation Dispatching Language (NVDL) is an <a href="/facts/XML_schema/uWam66Rj">XML schema</a> language for <a href="/facts/XML_Validation/MqgbRXzc">validating</a> XML documents that integrate with multiple <a href="/facts/XML_Namespace/vRXPlXVn">namespaces</a>. It is an <a href="/facts/International_Organization_for_Standardization/IacYR7Yg">ISO</a>/<a href="/facts/International_Electrotechnical_Commission/hSK0kjwI">IEC</a> standard, and it is Part 4 of the <a href="/facts/Document_Schema_Definition_Languages/v0tArVFX">DSDL</a> schema specification. Much of the work on NVDL is based on the older <a href="/facts/Namespace_Routing_Language/2DkssDMh">Namespace Routing Language</a>. </p>