Industrial Automatic Control Systems and Controllers Annotation << Back Organization of Semi-natural Testing and Simulation Communication Complexes for Message Transfer Special Network Documentary Exchange V.M. Sobol, I.V. Udartsev Discusses the technological aspects of the Organization and use of semi-natural testing to validate the software implementation of a protocol for the exchange of information in the communication complexes using multiple virtual Simulator compact Terminal subscribers. To conduct an autonomous and integrated debugging, as well as bandwidth real slice of the automated system and obtaining probabilistic-temporal characteristics of conveying messages in the Simulator provides assignment script checks in two versions: fixed and random playback form documentary traffic exchange. It is noted that for several generations of communication Simulator load Terminal complexes became the integral attribute of all types of tests: preliminary, inter-institutional, public. Given nontrivial built-in interim arrangements the examined message transfer protocol, provides his mathematical model presented in the notations of the extended Petri net (e-net) that allows you to vary and update values set by timers to prevent undue loss of messages, for example, due to premature expiration of the upload session. Keywords: telecommunications; complex documentary exchange; automated system for documentary exchange software; network communications; debug, program specification; Petri Network Simulator for message transfer. Contacts: E-mail: sobolvm@yandex.ru, E-mail: ntc_mob@mail.ru Pp. 27-35.