Assistant Professor
Indian Institute of Technology, Kharagpur, India,
Email: [email protected]
Scientist-F / Director
NRDMS, Department of Science & Technology, New Delhi
Email: [email protected]
The requirements of designing standard geospatial data repositories have been felt over times. Geospatial data, with their unique characteristic of providing geometric information of features, requires special method for managing and storing in addition to standard data access mechanism.
With geospatial data being standardized and made available in OGC specified Geography Markup Language (GML) format, the need arises to efficiently store the GML data. With spatial support being provided by commercially available, GML data can be stored in those spatially-enabled RDBMS. This paper proposes a method for string GML document in spatial database with UML based modelling method.
Once the Geospatial data repositories, as a backbone Spatial Data Infrastructure, have been formed, they are required to be interfaced on the web through standard API for seamless access across application. The paper proposes an architecture for providing the geospatial data form spatial database as services. The service interface adheres to OGC specified open access method for ensuring interoperability. The spatial data is retrieved back in the GML format on WFS access request from the user.
The methodology for building up a standard data repository on top of existing spatial databases and service based access method of the same has been implemented and tested successfully. The proposed work in this paper can be depicted as an initial step for building up larger geospatial repository at the state as well as national level and can been foreseen as a backbone for the development of Spatial Data Infrastructure.
