190 Geoservices: the implementation of an SDI at the Dutch Ministry of Transport The Dutch Ministry of Transport, Public Works and Water Management uses their Enterprise Architecture framework to move from vertical (geo)applications towards a service oriented architecture with the emphasis on open standards. The main benefits are demonstrated in a real life use case demonstrating the flexibility of this setup in real life emergency situations. Emphasis will be put on the build-up of an Open Source Framework implementation using a variety of OSS (Mapserver, Chameleon, Geoserver and Deegree). The use of proprietary software (IONIC, ESRI) will be briefly discussed as well. FOSS4G2006 - Free And Open Source Software for Geoinformatics Sesion 1 : SDI-USE Wim de Haas w.c.a.dhaas@agi.rws.minvenw.nl Ardy Siegert a.g.siegert@agi.rws.minvenw.nl Wim de Haas w.c.a.dhaas@agi.rws.minvenw.nl <MaKaC.conference.ContributionType object at 0xb4937eac>