XDR Schema
Encyclopedia
XML-Data Reduced was a schema language for specifying and validating XML
documents.
In January 1998, Microsoft
, the University of Edinburgh
and others submitted a proposal for an XML schema language called XML-Data to the World Wide Web Consortium. XML-Data Reduced was a subset of XML-Data, with some corrections and amendments submitted in July 1998.
The XML Schema (W3C)
effort in the World Wide Web Consortium
(W3C) received several other proposals, and while the final result has some similarities to the XDR proposal, it is significantly different. XDR was implemented in SQL Server 2000 and Biztalk Server 2001. Once the XML Schema Definition was finalised in 2001, Microsoft products and tools added support for it, and XDR was gradually phased out.
Microsoft XML Core Services
provided XDR schema support from versions 2.0 up to - but not including - version 6.0.
XML
Extensible Markup Language is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards....
documents.
In January 1998, Microsoft
Microsoft
Microsoft Corporation is an American public multinational corporation headquartered in Redmond, Washington, USA that develops, manufactures, licenses, and supports a wide range of products and services predominantly related to computing through its various product divisions...
, the University of Edinburgh
University of Edinburgh
The University of Edinburgh, founded in 1583, is a public research university located in Edinburgh, the capital of Scotland, and a UNESCO World Heritage Site. The university is deeply embedded in the fabric of the city, with many of the buildings in the historic Old Town belonging to the university...
and others submitted a proposal for an XML schema language called XML-Data to the World Wide Web Consortium. XML-Data Reduced was a subset of XML-Data, with some corrections and amendments submitted in July 1998.
The XML Schema (W3C)
XML Schema
XML Schema, published as a W3C recommendation in May 2001, is one of several XML schema languages. It was the first separate schema language for XML to achieve Recommendation status by the W3C...
effort in the World Wide Web Consortium
World Wide Web Consortium
The World Wide Web Consortium is the main international standards organization for the World Wide Web .Founded and headed by Tim Berners-Lee, the consortium is made up of member organizations which maintain full-time staff for the purpose of working together in the development of standards for the...
(W3C) received several other proposals, and while the final result has some similarities to the XDR proposal, it is significantly different. XDR was implemented in SQL Server 2000 and Biztalk Server 2001. Once the XML Schema Definition was finalised in 2001, Microsoft products and tools added support for it, and XDR was gradually phased out.
Microsoft XML Core Services
MSXML
Microsoft XML Core Services is a set of services that allow applications written in JScript, VBScript, and Microsoft development tools to build Windows-native XML-based applications...
provided XDR schema support from versions 2.0 up to - but not including - version 6.0.
See also
- XML Schema Language ComparisonXML Schema Language ComparisonAn XML schema is a description of a type of XML document, typically expressed in terms of constraints on the structure and content of documents of that type, above and beyond the basic syntax constraints imposed by XML itself. There are several different languages available for specifying an XML...
- Comparison of other XML Schema languages (not XDR). - List of XML Schemas - list of XML schemas in use on the Internet sorted by purpose