The analysis of the situation of interruption of the planned work of the specialist in the receipt of additional incoming information in the form of a spontaneous text message. Based on the results of the analysis, a hierarchical model of the basic concepts with the output to the calculation of parameters for the quantitative assessment of labor intensity in the absence and the presence of computer support. Hypotheses about the proposed solutions are formulated and a hierarchically ordered set of problem formulations for the implementation of these solutions is presented. An example in the interests of medicine is given.