Most companies understand that the only way to ensure continuous competitive advantage is the constant creation and launch of innovative products on the market. However, when implementing the processes of creating new products, companies face problems in forecasting and strategic planning, since the markets of innovative products are characterized by various kinds of risks, many of which are uncontrollable. The purpose of this study is to study the impact of changing consumer requirements on the technical and economic parameters of the products being created. The authors propose a mathematical model of cascade diffusion, taking into account the above relationship, as well as the degree of consumer involvement in the development process and the rate of change in the quality requirements of the product. The model makes allow to increase the efficiency of planning the innovation process, using a formed strategy for developing new products.