SITGA Xunta de Galicia, Spain

SITGA Share Geographical Data of Galicia, Spain

land The Challenge:

As a result of the demands generated by the District Development Plan of Galicia (PDC), Spain, the region of Galicia created a geographical information system (GIS) directed towards land planning and management at the local and district government levels. This GIS, known as the Territorial Information System of Galicia (SITGA), compiles socioeconomic, physical, and infrastructural data from a variety of sources.

SITGA’s many responsibilities include developing GIS applications for system users, publishing cartographic maps in different scales, and participating in various research and development projects to improve and increase the SITGA technical knowledge base. SITGA stores Galicia’s geodata in a catalog located on different servers, enabling other government municipalities of the region to access this information as needed. Conversely, this process can prove laborious, requiring too much time to push this data to the different servers. SITGA’s objective is to provide users with as much geographic information as possible while allowing them to access this information from other servers and applications through the use of international standards. To ensure that this data remains up to date and accurate, SITGA sought a solution that would provide an easily accessible, central database of Galicia geodata.

The Project Objectives:

Create a user-friendly environment to facilitate geospatial data management
Make spatial data commonly available
Share resources and procedures with other regional government municipalities
Introduce GIS functionalities to decision makers

The Solution:

SITGA decided to implement a Web-based solution with two levels of access – an intranet for technicians of Galicia’s regional government and an Internet site for other interested users and communities. Based on their past experience with Intergraph GeoMedia® software, SITGA partnered with Intergraph Corporation (Spain) and SADIM to develop the Web solution.

Intergraph and SADIM used GeoMedia WebMap Professional, Intergraph’s Web-based map visualization and analysis solution, as the basis for the solution. GeoMedia WebMap Professional enables the manipulation of valuable geographic information, allowing SITGA to create custom dynamic, open, and scalable Web mapping applications on the fly. The solution also incorporates Oracle as the central database, TerraShare as the image server, and Bentley’s Digital Print Room software.

SITGA’s new Web-based solution allows users to easily retrieve spatial data relating to the Galicia region. Users can access a database with basic and thematic cartography at different scales, as well as an aerial and satellite images store. The solution also incorporates various services – such as catalog service, gazette service, geolocator, Web Map Service (WMS) and Web Feature Service (WFS) capabilities, and thematic map creation.

Through their new Web-based solution, SITGA now has an easy-to-use cartographic server complete with a wide array of services needed to manage a large amount of cartographic information. By promoting the development of on-line information services in the regional government of Galicia, this solution is just the first step towards creating an entire Galician Spatial Data Infrastructure.

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