Geographic Information System (GIS) has long been essential tool for governments, environmental institutions, military and others who depend on geographic information. GIS combines layers of data about a location to create a fuller and more accurate picture of that location. These data are obtained from different sources in different formats, datum and coordinate systems. The problem of traditi...

With the increasing use of geographical data in real-world applications, Geographic Information Systems (GISs) have recently emerged as a fruitful area for research. In order to provide information to a multitude of users, the World Wide Web (WWW) techniques have been integrated into GISs. A high-performance webbased GIS, called TerraFly, has been developed in order to provide web-based GIS acc...

For the effective use of a araphic information processina system, information-integration capabilities are impohant. ~ e r < the information-intearation is defined as an interactive execution of simulationtasks and a database management task. This concept as well as its practical methods are explained in this paper by the introduction of a geographical information system (GIs). The GIs consists...

This paper presents a distributed object based multi-level architecture to allow interoperability among heterogeneous geographical information systems (GIS). It consists of a lower level which provides interconnectivity among information sites and a higher level which provides fonctionalities to hide the heterogeneity among GIS.

The opening of geographical information systems (GIS) and the interoperability between these systems demands new requirements for the description of the underlying data. The exchange of data between GIS systems is problematic and often fails due to confusion in the meaning of concepts. The term semantic translator, a translator between GIS systems and/or catalogue systems which gives the user t...

This paper examines land development using an integrated approach that combines residential decisions about choices of community in the Southern Appalachian region with the application of the GIS (Geographical Information System). The empirical model infers a distinctive heterogeneity in the characteristics of community choices. The results also indicate that socioeconomic motives strongly affe...