  This article is an attempt to combine different ways of working with sets of
objects and their classes for designing and development of artificial
intelligent systems (AIS) of analysis information, using object-oriented
programming (OOP). This paper contains analysis of basic concepts of OOP and
their relation with set theory and artificial intelligence (AI). Process of
sets and multisets creation from different sides, in particular mathematical
set theory, OOP and AI is considered. Definition of object and its properties,
homogeneous and inhomogeneous classes of objects, set of objects, multiset of
objects and constructive methods of their creation and classification are
proposed. In addition, necessity of some extension of existing OOP tools for
the purpose of practical implementation AIS of analysis information, using
proposed approach, is shown.
