Article

Article title DYNAMIC GEOINFORMATION MODEL FOR THE TASKS OF MATERIALS MANAGEMENT
Authors S.L. Belyakov, A.V. Bozhenyuk, M.L. Belyakova, A.A. Glushkov
Section SECTION I. INFORMATION TECHNOLOGIE AND PROTECTION OF INFORMATION
Month, Year 09, 2016 @en
Index UDC 519.688
DOI 10.18522/2311-3103-2016-9-7181
Abstract The article is devoted to the development of a geographic information model for material flow management tasks. The model is used in the development of geographic information system, which is oriented to provide an information support of decision-making. Providing a given level of confidence is making specific requirements for this model. Existing methods of synthesis of geo-graphic information models are considered. Disadvantages of geographic information models are given for mapping. The main drawback is the static nature of spatial data describing the real envi-ronment. The models for decision support systems have the advantage of building a dynamic rep-resentations of spatial data, but do not provide a mechanism for rapid updating. The mismatch between the state of the real world and the model reduces the reliability of the results. Classification of known information models carried, five types of models are highlighted. All models are ranked in order of increasing complexity. The structures of information systems that implement each model type have been described. It was concluded that the GIS model of the fifth type is best suited to the task of taking significant decisions. Features of geographic information systems for the implementation of the model have been defined. They have shown the need for storage of the temporal dependencies and knowledge to handle the temporal representations of objects logistics systems. The paper describes the dynamic information model as a set of objects , where M – representation of material flows in a logistics network, Ω – set of map objects and the spatial relationships of cartographic database of geographic information system, R- binding logis-tics network a cartographic basis, Q- set of indicators of quality assessment procedures of material flow. The components of the model are detailed. Particular attention is paid to the temporal components. The study discusses the completeness property of the model as an opportunity to solve four important tasks of material flow management using the indicators of cost of supply, delivery dates, risk levels and the magnitudes of potential losses. The wording of each task is given, criteria and constraints are specified. The use of dynamic models will allow increasing the reliability of decisions by several times.

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Keywords Informational support of decision-making; geographic information systems; geographic in-formation model; materials management.
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