O.N. Maslov - Dr.Sc. (Eng.), Professor, Head of Department of Economic and Information Systems, Volga State University of Telecommunications and Informatics, Samara, Russia. E-mail: maslov@psati.ru

The paper presents the problem of modeling uncertainties of knowledge about parameters and characteristics of complex holonic type systems . The objective of simulation is research of the properties of complex holonic type systems for management of them. In this case, two things are important. Firstly, all of these steps occur in a virtual environment and refer to the mathematical model, and are not related to the study of the object in the real environment. Secondly, we are not talking about the approximation of incomplete, inaccurate, unreliable and inadequate data obtained by a preliminary study of the object, namely the modeling of the object - which acts as the uncertainty of specific knowledge about it.