A Type System for Querying XML Documents A Type System for Querying XML Documents

In the last few years, the trend of publishing and sharing information on the World Wide Web caused much of the existing electronic data to lay outside of database management systems in the form of so-called Web documents. This process was further eased by the introduction of the eXtensible Markup Language (XML) by the World Wide Web Consortium (W3C) [1], which provided a standard format for Web-documents.