Computer science

Model for formation of IT services composition of information system on the basis of SOA and fuzzy sets theory

G. D. Dick^ab, A. B. Degtyarev<sup>a

a</sup> St. Petersburg State University, 7/9, Universitetskaya embankment, St. Petersburg, 199034, Russian Federation
^b Baltic Forwarding Company, 10, Serpukhovskaya street, St. Petersburg, 190013, Russian Federation

Abstract: The article considers main aspects of the development of procedures for the selection of IT-services in a service-oriented architecture using fuzzy logic. Discussion of model of IT-services, its components is carried out. Main attention is focused on the formalization of linguistic evaluations in solving the problem of choice of IT-services. Algorithm determining a set of IT-services with a minimum estimation of total costs with required level of quality is proposed. Results of implementation of the proposed algorithm in practice are shown. Bibliogr. 12. Il. 2.

Keywords: fuzzy sets, information, system, SOA.

UDC: 004.8

Received: February 17, 2015

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