Bielcheva G. Methods and models of formation of information support for GIS applications

The thesis is devoted to the development of methods, models and information technology of information support of GIS applications' formation. Object of researching is the process of GIS applications creating. The method of generating test sets of spatial data was developed for the first time, which includes creating of the base spatial objects, as well as attributes of these objects with the capability of simulating errors and distortions of spatial relationships and shapes, which allows generating test information support for GIS applications. The model for evaluating of spatial data quality was further developed, which presents versatile consideration of the user's demands during the choice of spatial data with the aim of formation of informational support. The selection method of spatial data on the basis of data rate thematic accuracy was improved, it allows taking into consideration the theme of GIS application and was implemented under the condition of the absence of reference cartographic material. The minimizing model of the time, spent for implementation of GIS applications, was improved, thereby reducing the time for obtaining the data, needed to develop the functional tasks of GIS applications. Based on the proposed methods and models, the informational technology of formation of information support of GIS applications was created, its practical implementation was issued in the form of a software module.