In this paper authors offer the method of obtaining the alternative model (AM) as an analytic expression for the estimation of time charateristics of technological chains (TC) of electronic technical document management (ETDM) in railway automation and remote control. The method is realized as the algorythm of consistent transition from TC formalized scheme to AM. Algorythm is a sequence of synthesis operations: formalized schemes, TC graphs, adjacency matrices, probability matrices, analytic expressions for reliability and risk of ETDM process paths, analytic expressions of TC performance time estimation. The analysis of dynamic probabilitic technological process (DPTP) based on formalized scheme and apparatus of dymanic probabilitic loaded graphs for the TC of confi rmation of approvable part of project documentation is adduced. The possibility of performance of ETDM simulation models verifi cation and validation procedures with use of AM based on DPTP is shown.
electronic technical document management, formalized scheme, alternative model, simulation model, verifi cation, validation, dymanic probabilitic loaded graphs
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