OBJECT ORIENTED APPROACH TO THE SOFTWARE DEVELOPMENT COST ESTIMATION

The first step in calculating the developer's work is to estimate the size of the information system software. Software development is always associated with certain risks and consequences. The formalized methods ofclassification and software development effort estimation are practically not presented in traditional methods. There is currently no uniform methodology for estimating the cost of software development. The main difference in the method used to estimate labor costs is the type of quality assessment criteria used (quantitative or qualitative). The procedure for determining the size ofthe software may differ by calculation methods. Presented CETIN method is compliance with both core IT standards and life cycles stages of software. The Rational Unified Process (RUP) technology was used, as part of the technological complexity of the SMM model, to estimate the labor costs, to provide an iterative and incremental approach for software development, as well as for planning and managing the projects based on the functional requirements of the system. The paper proposed easy-to-use indicators that allow the adjustment and automation of labour cost calculations for developing software application. Special correction factors are proposed to take into account non-functional requirements, such as fault tolerance, recoverability, safety.

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