This Topic Page is devoted to XML.

W3C pages on XML.

Lecture on XML in E-Business (PPT) and (ZIPed PPT)

W3C's XML Query and XSL Working Groups have published today (April 30) new updated drafts of the following specifications:

• XML Query Use Cases available at http://www.w3.org/TR/xmlquery-use-cases
• XQuery 1.0 and XPath 2.0 Data Model available at http://www.w3.org/TR/query-datamodel/
• XQuery 1.0: An XML Query Language available at http://www.w3.org/TR/xquery
• XQuery 1.0 and XPath 2.0 Functions and Operators Version 1.0 available at http://www.w3.org/TR/xquery-operators
• XML Path Language (XPath) 2.0 available at http://www.w3.org/TR/xpath20

General discussion on the drafts can be done in the www-ql@w3.org mailing list (archives at http://lists.w3.org/Archives/Public/www-ql/ ).

Comments and feedback on the drafts solely addressed to the working groups should instead be sent at public-qt-comments@w3.org  (archives at http://lists.w3.org/Archives/Public/www-xml-query-comments/ ). 

Note you can't subscribe to this list, as it's just used one-way to send comments and issues (so, it is not a discussion forum, you can use www-ql@w3.org for that).

Latest versions always available from the XML Query page at http://www.w3.org/XML/Query 

• Download PowerPoint Presentation

• W3C publishes note on XML Key Management Specification (XKMS)

• ebXML Home Page
• ebXML "Project Team Pages"
  • E-Business Process Model Presentation from the Business Process Project Team.
• ebXML Technical Architecture specification v1.04 (approved by the Vancouver plenary, 16 February 2001)
• ebXML Requirements Specification v1-0.pdf (approved at the Brussels meeting 12 May 2000)
• Draft Specifications for Review
  • ebXML Message Service Specification Version 0.98b

• Workshop on XML and Information Retrieval.
• This link also has the Workshop summary with links to ongoing projects, such as the ECES Project at Vassar University.
• Also, you may wish to download software from www.XYZFind.com to search XML documents.

• XXL - eXtensible and fleXible Library of database indexing structures.
• Microsoft's BizTalk Server 2000 will support the RosettaNet XML standard
• Late-breaking News on XML activities
• http://xml.coverpages.org/
• W3C XML Resources
• WC3 XML Specification
• www.xml.com 
• XML Database Products
• Transaction Processing Performance Council (Web E-Commerce Benchmark)

XML News and Events

• http://www.xml.org/
• There is a new specification called ebXML for E-business.

XML Frequently Asked Questions (FAQs)

• http://faq.oreillynet.com/XML

We recently developed and published a benchmark called XMach-1 to evaluate the performance of XML data management systems. It is the first multi-user benchmark for XML data management we know of. It is applicable to both XML-enabled relational DBMS and native XML data management systems and supports both schema-less and schema-based XML data. 

The workload consists of a mix of 8 query types and 3 update operations. To account for current limitations of available systems we allow these operations to be implemented at the application layer.

We have now released a data generator, implemented in Java, to populate the XML benchmark database. It generates a variable number of XML documents of well-defined characteristics (size, contents, structure). The data generator was successfully used for different systems and is freely available.

XMach-1 web page:

http://dbs.uni-leipzig.de/en/projekte/XML/XmlBenchmarking.html

XMach-1 was announced in several places, e.g.

- http://www.xml.com/pub/r/978

- http://www.xml.org/xmlorg_resources/whitepapers/2001_02_05_benchmark.shtml

- http://www.xmlhack.com/read.php?item=1068