Multicriteria architecture choice of software system under design and reengineering

The problems of multi-criteria choice of software system architecture are discussed, connected with definition of criterial function structure and formalization of trade-offs definition procedure for decision making. Universal scalar convolution is offered for taking into account requirements of subject area and criteria values limitations. The criterion weight in this convolution depends on its value proximity to the limitation. Optimization model “replacement-compensation” is used for software system reengineering problems or for directed choice of software architecture.