A business model can be built as the support of developing software application designed to business purposes. Some problems may appear because modelling the intricacies of the business context and modelling the software supposes the appeal to different concepts and techniques, programming languages that make their integration difficult. The goal of the paper is to create the software system that fits the best the business software; the paper presents various related topics. We are focused on the principles that a software application must take into account to make a connection between business architecture and software architecture.