Tuesday, December 17, 2013

In the production of geographic data, the lack of an accepted data standards, lack of qualified dat


Academic a bola Curriculum Vitae Areas of Expertise Experience Membership Certificate-Academic Activities Awards Publications Articles Proceedings of International Conference Papers National Reports Other Publications Completed Projects Ongoing Courses Blog
ITU Institute of Informatics Graduate Program in Geographic Information Technologies Sani by Irem Beryl Assoc. Dr.. Arif Contemporary AYDINOĞLU prepared a bola in consultation "between geographic data model conversion algorithms Developing Application-Oriented" MA thesis has been completed.
In the production of geographic data, the lack of an accepted data standards, lack of qualified data, the same data for different purposes by different institutions and every institution to produce repetitive data in different formats, such as generating problems are encountered. In geographic data sharing is not appropriate technical infrastructure for data usage, especially in public institutions a bola and legal obstacles in the transformation of data in different a bola formats, there are technical problems. So Geographic Information Systems (GIS) applications use a combination of data from different sources and data interoperability is impossible. Geographical data management problems, common standards a bola that meet the needs of users of geographic data standards that have to be produced has revealed. In this context, especially in developed countries from the national to the local level standard for interoperability of geospatial data, policy a bola and technology components together with the Spatial Data Infrastructure (SDI), including development is concerned.
With this approach in Turkey Turkey National GIS (TUCBS) the process of establishing geographic data model for geographic data themes are developed. Unique Model Game Language (UML), data models, data available at the national level and according to user needs-based approach to model software-hardware-independent data model are designed. Geographical data providers UML manufactured a bola Geographic Markup Language (GML) based data sets taking into account the common data exchange formats are accepted to share. Thus, use of geographic data providers available to common data exchange a bola format conversion from the database model and the common data exchange format for geographic data from boot-model conversion algorithms should be developed database applications.
In this thesis, the need for effective management of geographic data have been identified and standardized a bola application a bola diagrams, data models and algorithms have been developed based on the conversion. As a common data format based on GML-based data exchange and interoperability has been analyzed in terms of applicability. Geographical data transformation (Spatial Extract-Transfer-Load) concept in details, the common data model conversion between the application a bola database with uniform principles are determined. Belonging to different sources and different data providers GML data sets from the database model based on common data exchange format for the conversion of geographic a bola data conversion algorithms have been developed examples. "Topographic Maps" and "Digital City Atlas" practices, taking into account the common data sets, data mining, also referred to as attributes for application databases for effective use model-based data transformation algorithms and real-time data conversion applications development were discussed. a bola Building, Transportation and Administrative geospatial data themes the examples of geographic data conversion applications FME software tools using common data sets for implementation of different scales and in the content data sets transformation scenarios developed, transformation and generalization tools determining the applications have been developed. As shown in the example of the city Atlas produced web using data sets, desktop and output a bola map products have been developed.
OGC-WMS and WFS
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