GDI NRW and GEOBASIS.NRW: Common Manifesto for Interoperability Northrhine-Westfalia is building together with its communities, the GIS industry and the GIS users the Geo-Data Infrastructure NRW (GDI NRW), in order to activate the geo-information market in NRW and to improve the administrative and private geo-data within the framework of existing legislation. In this process a freely accessible geo-data net for all the partners with a central clearing point giving access to all geo-data available in the net will be established. In the GEOBASIS.NRW project the standard for an official cadastre information system (ALKIS) which was developed by the Working Committee of the Survey Administrations of the Länder of the Federal Republic of Germany (AdV), is being put into practice in Northrhine-Westfalia. The essential aim is a wider use inside and outside the communities of the geo-basis data provided by ALKIS. The project helps to improve the performance of the communities and is closely related to the setting up of the GDI NRW. The basis for the two projects GDI NRW and GEOBASIS.NRW will be the specifications of the Open GIS Consortium, developed and supported by all leading GIS producers, and the related practice-orientated interoperability concept for user software. This is supposed to enable a vast variety of GIS applications by different producers to have access to geo-basis data in geo-data servers at different places and by different producers at the same time, to use and - if it serves the professional purpose and if it is legal - to change them. Due to the heterogeneous system situation, Northrhine-Westfalia is an ideal test-bed for the demonstration of OpenGIS in the above mentioned areas of application.

To reach the following goals  The standards of the Open GIS Consortium and the ISO/TC 211 will be applied whenever they are available (in order to avoid individual solutions),  Clear specifications will be fixed for all services and information products in the range of GDI NRW and GEOBASIS.NRW (a condition for interoperability),  These specifications will take place in the implementing process (interoperability of applications and not only of the underlying concepts),  The GEOBASIS.NRW specifications will represent a component of the GDI NRW reference model.

Aspects to consider Institutional / organisational aspects  Competence, roles, co-operations Technical aspects  Data, metadata, services, products, standards Legal aspects  Authorisation, protective mechanism Socio-economic aspects  Costs, prices, qualities, qualifications International aspects  Norms and standards, systems

GDI Reference Model Common basis for all involved parties Take international experience into account Use standards were ever possible (OGC, ISO/TC 211,...) Intitiate and guide consensus processes

Web-Servicesglobal Interoperability Database Firewall Business Components Application-Server local

Integration Level: WEB! Intended Services  Search and Discovery  Access and Retrieval  Portrayal and Presentation  Ordering and Payment Services  Security Services  Authentication Services Geospatial Data Infrastructure

Realized GDI-Services

Realized GDI Services Web Registry Service Map Services  Administrative Boundaries [V]  Map Sheets of TK50 [V]  Topographical Maps 1:50000 [R]  Classified road network [V]  Forest map [V]  Soil map [V]  Regional zoning map [V]  State level zoning map [V]  Cadastral maps – restricted [V] Feature Service  Forest data Pricing and Ordering Service  Cadastral  Roads GeoMarket.NRW Portal Web Registry Client Different Mapping Clients

Step by step to GDI NRW Start of the initiative with sponsored projects  Result: pre-GDI (realization of OGC or ISO specs)  Market study  Reference model Setup Special Interest Groups (bottom up)  SIG Architecture  IT is in progress (e.g. SOAP, UDDI,...)  OGC Specs are under further development (e.g. Catalog vs. WRS)  Harmonization of ISO and OGC  SIG Metadata  SIG E-Commerce  Result: Concrete concepts for GDI NRW Start Pilot / Testbed  Result: first instance of GDI NRW  OGC-Pilot: Integration of different sets of geodata to realize a real world use case: “Baulandkataster” for the city of Cologne Guide the process from a board (in the near future CeGI)

Experiences... Substantial challenges of a NSDI:  Create awareness  Make documentation available  Bridge cultural differences  Find people who share the vision and realize it, not only politicians and strategists – also „doers“ Things to avoid:  Unclear definition of results  Missing participation of the private sector  Frictions between providers  Low financing

URLs  Reference model  Manifesto gdi-nrw.uni-muenster.de  GDI Testbed Services and Clients  Special Interest Groups  Reference Model ionen/ ionen/  Band 26: Reference Model  Band 24: Studie: Geodatenmarkt NRW