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use and software licensing rules apply. This document specifies usage scenarios for the W3C XML Query data model, algebra, and query language. Status of this document The material in this document was previously contained in the W3C XML Requirements. Due to its length, we have placed it in a separate document. This is a W3C Working Draft for review by W3C Members and other interested parties. It is a draft document and may be updated, replaced or made obsolete by other documents at any time. It is inappropriate to use W3C Working Drafts as reference material or to cite them as other than "work in progress". This is work in progress and does not imply endorsement by the W3C membership. This document has been produced as part of the W3C XML Activity, following the procedures set out for the W3C Process. The document has been written by the XML Query Working Group ( W3C members only). The goals of the XML Query working group are discussed in the XML Query Working Group charter ( W3C members only). The XML Query Working Group feels that the contents of this Working Draft are relatively stable, and therefore encourages feedback on this version. Comments on this document should be sent to the W3C mailing list www-xml-querycomments@w3.or