Mathematical Model of the Information Flow

When assessing effect from conducting measures on managing material, information and financial flows in logistical systems of enterprises, a need arises in creation of information systems with the use of analytical instruments. The probabilistic character of formation and receipt of information requires, in the process of modelling information systems, use of mathematical instruments, more often - theory of Markov processes and mechanism of the theory of waiting lines. The article build an analytical model of the information system on the basis of a local file-server network on the basis of identification of the system functioning with a continuous Markov process. It develops methods of identification of main characteristics of the system: average number of users that are waiting for response and average duration of waiting for response to the user's inquiry.