211 FDO: Street Vendors in the Cathedral FDO (Feature Data Objects) is the feature access library used by MapGuide and recently released as open source by Autodesk. The architecture of FDO is briefly reviewed, and then the experiences of implementing providers for raster data (via GDAL) and vector data (from PostGIS) are given from a software developer point of view. FDO will also be constrasted to the roughly analygous GDAL/OGR library, with some discussion of possible future applications of FDO. FOSS4G2006 - Free And Open Source Software for Geoinformatics Session 5 : Development Frank Warmerdam warmerdam@pobox.com Mateusz Loskot mateusz@loskot.net Frank Warmerdam warmerdam@pobox.com Mateusz Loskot mateusz@loskot.net <MaKaC.conference.ContributionType object at 0xb353f4ac> DEV