“Cataloguing, Processing and Downloading heterogeneous geodata on the Internet” by Andrea Musone c/o Intecs Sistemi SpA, via L. Gereschi, Pisa (Italy) Tel , fax: Paper and slides online at __________________________________________________________________ 5 th EC-GIS Workshop, “GIS OF TOMORROW” Stresa, Italy June 1999 __________________________________________________________________ - 1 -

INTECS SISTEMI SpA The Company:ISO 9000-certified SME; Where: Pisa (I), Rome (I), Piombino (I), Naples (I), Tolouse (F); How many: 170 people (90% graduated); Business: Space, Defense, Civilian, Research; What:Software Engineering, Real-Time Software, Space On-Board & Ground Software, Distributed Multimedia Information Systems; To know more: or __________________________________________________________________ 5 th EC-GIS Workshop, “GIS OF TOMORROW” Stresa, Italy June 1999 __________________________________________________________________ - 2 -

Scenario GIS Applications: l multiple domains (agriculture, transports, geology, etc.); l proprietary (e.g. based on commercial GISs); l working on a variety of geodata formats; l interoperable through geodata export/import; Geodata conversion: costly and complex. ___________________________________________________________________ 5 th EC-GIS Workshop, “GIS OF TOMORROW” Stresa, Italy June 199 ___________________________________________________________________ - 3 -

Recovery initiatives l Political: GSDI, NSDI, EGII (GI2000), etc.; l Technological: open formats, but mainly open APIs; l OGC (Open GIS Consortium ® ); However the interoperability through geodata exchange will survive for a while. ___________________________________________________________________ 5 th EC-GIS Workshop, “GIS OF TOMORROW” Stresa, Italy June 199 ___________________________________________________________________ - 4 -

Requirements User needs: l locate the data; l determine (with metadata) if data meet own needs; l request data processing (e.g. filter, project, clip); l transfer and import data onto own GIS applications; Organizational needs: l cataloguing data (with metadata); l making metadata and data available on the network; l setting a legal framework for sharing data (and costs); ___________________________________________________________________ 5 th EC-GIS Workshop, “GIS OF TOMORROW” Stresa, Italy June 199 ___________________________________________________________________ - 5 -

GIS Broker: “bridge” from Metadata to Data Client/Server architecture for cataloguing, processing and downloading heterogeneuous geodata on the Internet. Inner view: l proprietary Client (ArcView ® )  LAN catalogue; l Web Client  WAN catalogue server (Informix ® ); l ASCII metadata import/export (keyword-value pairs); l “open” Geodata Server (ArcInfo ®, O2 ®, others); ___________________________________________________________________ 5 th EC-GIS Workshop, “GIS OF TOMORROW” Stresa, Italy June 199 ___________________________________________________________________ - 6 -

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___________________________________________________________________ 5 th EC-GIS Workshop, “GIS OF TOMORROW” Stresa, Italy June 199 ___________________________________________________________________ Client functions (on metadata): l attribute search (e.g. date > 01/01/94, type=“vector”); l spatial search by gazetter (e.g. within “Tuscany”); l spatial search by Area Of Interest (AOI); l spatial search by computed AOI; l show attributes (e.g. CEN/TC 287); l show browse graphic; l show spatial domain (footprint);

___________________________________________________________________ 5 th EC-GIS Workshop, “GIS OF TOMORROW” Stresa, Italy June 199 ___________________________________________________________________ Geodata retrieval options: l geographical objects (default: all); l attributes (default: all); l attribute values (default: no filter); l export format (default: source); l datum/projection (default: source); l clip area (default: full extent);  notification of geodata URL Transformer Client WAN Geodata Server Transformer ArcInfoO2 generic query retrieved geodata specific query specific query

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___________________________________________________________________ 5 th EC-GIS Workshop, “GIS OF TOMORROW” Stresa, Italy June 199 ___________________________________________________________________ Funding: l ESPRIT project GEO 2 DIS (8017, EC DGIII); l Telematics project GeoMed (2037, EC DGXIII); l GIS-HighWays (IMI), indirectly; l MUIS (ESA/ESRIN), indirectly; Next future: l tackle the CEN/TC ISO/TC 211 dilemma; l metadata interoperability (e.g. UML/XML); l towards an unified infrastructure (e.g. with ESA services); l exploit the interoperable GISs (when available);