Open GIS Consortium and LandXML.org are working together to provide an open data method to exchange data between LandXML 1.0 and GML 3.0. Read the press release from OpenGIS Consortium: <http://www.opengis.org/press/?page=pressrelease&view=20040510_LandGML_IE_PR > OGC Announces First Interoperability Experiment Tackling LandXML and GML Interoperability. This project aims to bridge the data gulf between cad/engineering/survey applications and GIS applications using xml-based open standards. This means that GIS applications will be able to import LandXML data without requiring software changes. GIS applications that support GML 3 will be able to leverage LandXML data from over 40 available engineering/survey software applications. There are two phases to this project (producing two transform tools): Phase 1: LandXML to LandGML transform tool Applications and systems that can consume GML 3 will be able to read data supplied in LandXML 1.0 via the "LandGML" transform tool. This is accomplished by first creating a GML application schema that models everything found in the LandXML schema, called "LandGML". What is LandGML? LandGML is a vertical application schema based on OpenGIS Geographic Markup Language, GML 3. The purpose for LandGML is to enable GML 3 aware applications to read the transformed data without requiring any special knowledge of LandXML. This allows users of GML-enabled GIS applications immediate access to civil engineering / land survey and transportation data. And yes, there is already a demo for you to try out. http://www.landxml.org/landgml/landxml2gmlform.asp will convert a LandXML 1.0 file, that you upload, and return a LandGML document. Phase 2: LandGML to LandXML transform tool Will start in June 2004 and produce a transform tool to convert LandGML documents into LandXML documents. Like LandXML, this is a great project that is trying to solve a real-world problem and if you are interested in participating in anyway please contact me. Regards, Nathan Crews www.landxml.org