Problems of maintenance of semantic geointeroperability and coordination of understanding of geodata semantics

The primary goal of the work was to develop a complete and, whenever possible, all-round point of view on the problem of interoperability of cooperating information systems in general and the semantic aspect of this problem in particular. The paper considers principal causes of occurrence of the problem of intersystem interoperability, its various definitions, and approaches to its structurization. An attempt to structure the problem of interoperability is made, the ambiguous moments are discovered and possible variants of their elimination are suggested. The state-of-the-art is analyzed in the field of standardization of metadata. The conclusion about necessity of standardization of forms and ways of performance of search inquiries and intersystem functional calls is made. The basic moments of the problem of understanding of sense of the data, existing approaches to its structurization, and solving are considered.