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Implementation of spatial information infrastructure in Poland in accordance with service oriented architecture for web services
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Assuring coordination among entities providing spatial information for the needs of the policy of the European Community in the area of environment protection by creating metadata for spatial data collections and services is the basic assumption of the INSPIRE Directive establishing Spatial Information Infrastructure in the European Community based of infrastructures of member states. The construction and exploration of the technical part of SDI should be based on ISO and CEN standards and OGC and W3C technical specifications in order to obtain interoperability required by the Directive. Spatial Information Infrastructure (SDI) should contain three elementary functions: publication of metadata for spatial data collections and services according to the application profile ISO 19115/19119 and the national profile by means of interoperative metadata catalogues, search of published spatial data services, authorized access to spatial data services irrespective of the application environment of the user by means of both web and desktop applications. A possibility of adaptation of spatial information systems (GIS) functioning so far to their working together in internet or intranet is very important from the point of view of cost of implementation of the SDI. The implementation of such a solution makes it possible to apply appropriate service oriented architecture (SOA), and in particular web services, where the conformity of interfaces of services with OGC and W3C technical specifications is a condition of effective integration and working together of already existing systems. An additional benefit resulting from the ifrastructure based on SOA is the possibility of integrating web services created on independent technological platforms. This makes it possible to use both free and open and commercial software, which may have an effective impact on the cost of construction of the infrastructure. The experience of the EU countries shows that economic benefits result first of all from integration of free and open software with legally restricted software. The use of public license does not have to be an alternative for the software legally restricted by its manufacturer, but a substitute having influence on efficiency and functionality of Spatial Data Infrastructure.
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Tom
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73--80
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Bibliografia
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bwmeta1.element.baztech-article-BPW8-0005-0056
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