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Devyatkov V.

Degree	Dr of Economics, Elina – Computer Ltd., Institute of Advanced Studies of Tatarstan Academy of Sciences
E-mail	vladimir@elina-computer.ru
Location	Kazan
Articles	Simulation World: View from Russia The paper describes the composition, structure and functions of a professional Simulation & Modeling (S&M) society. It enumerates the main international and national societies, published magazines and conferences. The analysis of the current state of S&M and prospects of its development in Russia is given. Read more... Simulation expertise: application experience and prospects The article deals with expertise of the simulation using the special computer technology. The state of affairs in the industry is analyzed. The simulation expertise types are classified. The practical examples of simulation expertise and express detailed simulation expertise are demonstrated. Some main directions of expansion of market simulation expertise are formulated. Read more... Application of GPSS World simulation system at designing ship-assembly complexes in structure of modern ship-building shipyards This article describes a software package for the large‑block construction of ships technological processes modeling for the possibility determination purpose of the production program and search «bottlenecks». Developed software package designed to create simulation models covering plant enlargement and saturation blocks, slipways production in shipbuilding companies and holding them for complex experiments. The tasks to be solved by using a complex, as well as tools of the initial data, the formation of a simulation model are described. There are ways to specify the experimental conditions provided to the user via the user interface. Some computational problems and conditions that affects on simulation results are rewied. Read more... Some issues of methodology simulation research development The need to improve the methodology for simulation studies is justified in this article. Directions of perfection the traditional methodology of complex systems (SSCS) simulation studies based on the paradigm of abstract levels of study are considered. Set-theoretic approach to modeling of SSCS-process is proposed. «Desired» user image simulation tool formulated. Some examples of the new methodology applications are presented in the conclusion of this article. Read more... Shared research space for simulation modeling in GPSS Studio The preconditions of creation, conceptual bases and main functions of the new environment of simulation modeling GPSS Studio for the study of complex discrete – event systems are analyzed and formulated. The simulation language GPSS World is used as the modeling core of the environment. When creating a modeling environment, a number of new concepts are introduced. It is – a single research space, a simulation research project, dynamic monitoring of the model, a simulation application, and a virtual report. The possibilities of complex application of the modeling environment at all stages of simulation with the use. It is – of hierarchical structural schemes of the model, text editor, automatic generation of the model text, debugger, interactive standard modeling report, databases of the model source data and simulation results, means of operational analysis of the dynamics of changes in the model indicators. Special attention is paid to the creation of simulation applications independent of the simulation environment. The basic tools of the environment for creating simple and accessible for the mass user simulation applications, taking into account the specifics of the subject area of the system under study are described. As a result, the created application can be operated by a specialist without additional programming. Read more... Simulation modeling application in complex system management The article analyses the issues of the simulation models application in the large systems management. The background of the issue, specifically, the gradual increase of the models application domain in the management, is described. Quite successful results of the simulation models application in the strategic management of complex systems in different branches are noticed, for example, the works described in [6, 7]. It is mentioned that quite long execution time of most simulation models make it difficult to use them in the operational management, especially for complex systems. The possible solutions of this problem related to the synergy of multiple factors, primarily the emergence of the fundamentally new computational capabilities, use of contemporary concepts of simulation investigations, a combination of the simulation modeling with the multi-factor optimization, the use of the model as a solver, are proposed. The ability to conduct optimizing experiments with the model allows to find and recommend the best ways of the system development. The effectiveness of the simulation experiments application is shown in this article for the optimal planning of the oil refining company output. The technique of the optimal solution finding in the modeling environment by means of the connection of the IOSO multiparameter optimization software to the GPSS Studio modeling environment was successfully tested. Based on the results of the work, it was concluded that in the future the technique of optimal solution finding will allow use of the simulation model as an automatic “intellectual solver” in automatic production planning processes. The analysis and estimations performed showed that the integrated use of all new possibilities ensures the synchronization of the model execution time and the required time bounds of the management solution production. The conclusion about the beginning of active use of the simulation modeling method for the complex systems operational control is made. Read more...