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The object of this research is the service systems that receive a stream of requests on their input, which represents a range of mutually dependent operations of the &amp;ldquo;finish&amp;rdquo; &amp;ndash; &amp;ldquo;start&amp;rdquo; type.&amp;nbsp;The time of conducting separate operations is a random variable, and the delivery itself requires the use of one or several types of resources.&amp;nbsp;It is suggested that there are timeframes for processing the request.&amp;nbsp;The goal of this research is to develop the database structure that would allow storing information on the incoming projects, operations, mutual dependence, used resources and specialists. The design of logical structure of the database was carried out using the methodology &amp;ldquo;essence &amp;ndash; link&amp;rdquo;, which determines the data values in the context of their correlation with other data.&amp;nbsp;The analysis of specificity of the object of research revealed a range of requirements submitted in the database.&amp;nbsp;Leaning on these requirements along with considering normalization of relations used in the theory of relational databases, the author designed the universal structure from the perspective of its application, support of the analysis of the scheduling process, and the entirety of peculiarities of the object of research. Such database structure can be used in different fields that allow decomposition of the project into multiple separate interdependent tasks, not requiring major modifications.&amp;nbsp;The article provides the examples of using the database for information systems in construction sector, as well as for the development of IT projects.	

Design of the database structure for software optimization of operation of the stochastic multiphase systems