NDLI: A JavaRMI-based application supporting interoperability in a GIS context

Content Provider	IEEE Xplore Digital Library
Author	Vittorini, P. Di Felice, P.
Copyright Year	1999
Description	Author affiliation: Dept. of Electr. Eng., l'Aquila Univ., Italy (Vittorini, P.)
Abstract	The growth of the Internet has emphasized the need for interoperability among different and heterogeneous systems, i.e. their ability to exchange data and services in a transparent way. The article addresses interoperability in a GIS context where systems, historically monolithics, need to exchange spatial data. The work is based on the models proposed by the OpenGIS Consortium, whose mission is the unification of spatial data models and services in order to achieve interoperability among GISs. The paper faces the problems connected with the interoperability at different levels of abstraction. At the highest level (the spatial data on the Internet), a set of common interfaces are adopted to represent both data and services; at the bottom level (database level), the concept of a specialized server (called OGIS/SQL server) is introduced which is the entity that tries to obtain data integration among the data sets. The paper also discusses an implementation of a JavaRMI-based application, that allows different and Web distributed data sets to be interconnected. The architecture of the application is made up of two different relational databases (one stores rivers and the other cities), a distributed object (representing the origin of its own spatial reference system), and a client that acquires (by query) spatial data from the previous mentioned spatial data sources, stores them in a local database and then visualizes the result.
Starting Page	428
Ending Page	439
File Size	544370
Page Count	12
File Format	PDF
ISBN	0769503934
DOI	10.1109/TOOLS.1999.796517
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-09-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Java Geographic Information Systems Web and internet services Spatial databases Web server Relational databases Data models Rivers Cities and towns Distributed databases
Content Type	Text
Resource Type	Article

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