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		<label>8903</label>
		<citationkey>CâmaraThomFreiMont:1999:PrSeCo</citationkey>
		<title>Interoperability In Practice: Problems in Semantic Conversion from Current Technology to OpenGIS</title>
		<year>1999</year>
		<secondarydate>20000906</secondarydate>
		<secondarytype>PRE CI</secondarytype>
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		<author>Câmara, Gilberto,</author>
		<author>Thomé, Rogério,</author>
		<author>Freitas, Ubirajara,</author>
		<author>Monteiro', Antônio Miguel Vieira,</author>
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		<conferencename>International Conference on Interoperating Geographic Information Systems, 2.( INTEROP)</conferencename>
		<date>1999</date>
		<publisher>Springer-Verlag</publisher>
		<publisheraddress>London</publisheraddress>
		<pages>129 - 138</pages>
		<booktitle>Proceedings</booktitle>
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		<contenttype>External Contribution</contenttype>
		<abstract>This work investigates the practical issue of mapping existing GIS to the OpenGIS standards. We describe the data models used in three systems (MGE, ARC/INFO and SPRING) and analyse the problems involved when mapping them to OpenGIS. Our conclusion is that the OpenGIS standard has not been defined in a formal and unequivocal way, and therefore, there are indefinitions and competing alternatives for mapping existing GIS systems into the proposed standard.</abstract>
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		<language>en</language>
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