The article presents research work of the Informatics and Computer Technologies Department on the application of modern computer technologies for teaching and testing systems. Two research works are described: a universal system of computer testing and a system for assessing the quality of articulation of Russian digits. The universal system of computer testing is developed on the basis of new information technologies, testing records and testing itself. The testing system is oriented to a wide range of uses, including knowledge control in the learning process and test taking. The system for assessing the quality of articulation of the ten Russian digits is based on modern advances in speech technology and allows you to evaluate both the overall quality of articulation and pronunciation errors of word length. An experimental study of the system allowed us to conclude that the assessment it produces corresponds to the experts' assessment in about 73% of cases.

Improvement of methods of accounting and quality control of extracted raw materials is a very urgent problem, because the lack of effective methods of calculation lead to significant systematic errors in planning the volume and quality of production.

One of the main problems of improving the processing of mineral raw materials is to ensure the homogeneity of its qualitative composition.

The effectiveness of ore quality management systems at mining and metallurgical enterprises is largely determined by the structure and parameters of the organization of averaging characteristics of the raw material flow.

Let us consider the issue of planning ore extraction of a given composition on the example of the Kingisepp phosphorite mine. The whole complex of open-pit mining of the Kingisepp phosphorite deposit is characterized by the complexity of interrelationships between technical, mining, geological and economic factors.