Questions or Comments?  Delaine Arnold

Reference Links

• This page describes the work being done at W3C within the XML Activity, and how it is structured. Work at W3C takes place in Working Groups. The Working Groups within the XML Activity are listed below, together with links to their individual web pages.
• In this tutorial you will learn how to read and create XML Schemas, why XML Schemas are more powerful than DTDs, and how to use the XML Schema language in your application.
• Standard ALI Query Best Practices

IETF (PIDF-LO) Links

• RFC 4119 -- A Presence-based GEOPRIV Location Object Format

• RFC 3863 -- Presence Information Data Format (PIDF)

• Revised Civic Location Format for PIDF-LO

• Geodetic Shapes for the Representation of Uncertainty in PIDF-LO

• GEOPRIV PIDF-LO Usage Clarification, Considerations and Recommendation