Preparation of projects introducing new production takes into account all aspects related to development and technical preparation of production, production of prototypes, familiarization with production, processing marketing sales support, as well as preparation of service support. PLM systems represent the tools for automating engineering activities in the product life cycle. These solutions are based on the idea of a close cooperation between individual areas involved in the final product, from its design to the end of its technical life. Collecting a large amount of data and information about the product under observation is typical for this kind of activity. PLM integrates the areas of computer aid, database and information systems, and computer networks. This article points to the creation of a knowledge-based application environment for data management of a small business with a description of its functions and possibilities of use.