An Model GIS Interoperable
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Abstract
This paper brief by introduces the interoperability and summarizes several main models of GIS interoperability. Then the interoperable GIS model——Open Virtual Model ( OVM) is given. OVM tries to resolve some problems in accessing distributed heterogeneous component databases transparently and operating the collaboration of GIS software function. An idea of common virtual interface is put forward. Based on the idea, the open and virtual OVM are analysed.
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