ANALYSIS OF REQUIREMENTS APPLICABLE TO THE PRICING SYSTEM IN THE CONSTRUCTION INDUSTRY

Formation of the pricing system and underlying investment and construction activities were analyzed by the authors in their research. It is noteworthy that the pricing system has a common basis with other human systems, as it incorporates such constituents as process, people, software, etc. Correct interaction between these elements ensures conformity between the anticipated and the practical performance of the system. The basis for the effective operation of the existing system and reduction of potential risks consists in early identification and analysis of requirements set by the user. Absent of implementation of an effective requirement management process, the pattern of the system development will look chaotic and unpredictable. In the process of the data analysis, the data set is converted into a set of the user requirements describing the anticipated behavior of the system in the course of its interaction with the operating environment. The requirements of users comprise an important constituent of the system design. They affect the entire development process from the beginning to the very end. In accordance with the principles of the system engineering, the authors have identified the key pricing system parameters; their implementation assures the appropriate functionality with a view to the formation of the contract price at various stages of the life-cycle of the investment project. Analysis of the above requirements makes it possible to convert them into a technical vision of the desired product that can demonstrate the required functionality. The methodology proposed by the authors contemplates decomposition of the levels of requirements; therefore, the authors employ a three-level model that describes the expected functionality of the system. The model includes an organizational level (basic processes, participants, information flows), a methodological level (method of calculating the cost of design, construction and operation, regulatory and methodological documents) and a technology level (information systems and technologies). A three-level functional decomposition of the system is used to simplify the comparison of the elements of the system architecture and the user acceptance