forecasting.

The article forms and substantiates the application of control charts for the method of extending the service life of the source of ionizing radiation (SIR). An algorithm for its aim was developed. The main types of con- trol charts and the features of their application were considered. A methodology for constructing a cusum map for extending the service life of SIRs based on the results of their calibrations, as well as a methodology for checking the results of SIR calibration for statistical controllability, were developed.

This article describes the procedures of data mining based on prediction of time series for land cadastre data. Principles, required for the development of the method of forecasting using time series are examined. Mathematical model for serious prediction is developed. The task of prediction of land resources used in Striy District Lviv Region is technically realized.