List of Articles شناسی سیستم

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  1 - Assessing the Remedy Policies of “Urmia Lake” Basin Crises By A System Dynamics Approach
  علیرضا  لاری جابر  مهرکار mir saman pishvaee
  The Urmia Lake is the greatest lake in Iran and the second saline lake in the world. This ecosystem contains a wide numbers of animals and plants. Urmia Lake has placed in the northwest of Iran and has economical, social and environmental importance for local people. Un More

  The Urmia Lake is the greatest lake in Iran and the second saline lake in the world. This ecosystem contains a wide numbers of animals and plants. Urmia Lake has placed in the northwest of Iran and has economical, social and environmental importance for local people. Unfortunately, in recent years, various and complex problems have decreased the level of water in Urmia Lake strongly and deteriorate the future life of this lake significantly. However, in the last decade, more than half of the lake area has changed to the salt plains. Many researches address the Urmia Lake crises in recent years; however, most of them are unable to model the dynamism of Urmia basin as a whole system in long-term period. In this paper, the critical factors affecting the reduction of Urmia Lake water level are defined. In addition, a system dynamics model, which is able to illustrate the behavior of the whole system of Urmia Lake, is proposed. The developed model is validated through comparison analysis and the derived results show the high accuracy (around 97%) of the proposed model. Three policies are proposed and evaluated to increase the water inflow and Lake level. The simulation results show that the hybrid policy has more efficiency than the other ones. Also, a prediction of Urmia Lake volume is proposed based on model till 1405. Manuscript profile
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  2 - بررسی تاثیر معنویت گرایی کارکنان بر مدیریت ضربات روحی سازمانی در یک بیمارستان
  mohamadAli sarlak  
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  3 - Investigating organizational characteristics during the go-go and adolescence stages using the PAEI framework and the system dynamics approach
    Ramin Mowlanaour Fatemeh Saghafi
  Understanding the characteristics of an organization during different stages of its lifecycle help us make appropriate decisions at each stage in order for solving any problem. Employing the PAEI framework proposed by Adizes, and the system dynamics approach, we have an More

  Understanding the characteristics of an organization during different stages of its lifecycle help us make appropriate decisions at each stage in order for solving any problem. Employing the PAEI framework proposed by Adizes, and the system dynamics approach, we have analyzed the characteristics and behavior of an organization during the go-go and adolescence stages of its lifecycle. Moreover, using the system dynamics analysis approach, we have plotted the causal feedback loops and stock-and-flow diagrams of each stage of the organizational lifecycle. Then, the output of the simulations of 100 months of the go-go and adolescence stages of the organizational lifecycle performed in the VENSIM software are obtained .Finally appropriate strategies have been proposed for tackling the problems that the organization may face in each stage of its lifecycle. Manuscript profile
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  4 - پویاشناسی تأثیر رهیافت¬های مدیریتی بر شکل¬گیری و تبین مدل-های مدیریت عملکرد
  majid hasani Adel Azar    
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  5 - Extension of The development methodology for hybrid multi-scale AB-SD simulation modeling in learning organizations
      Alinaghi Mashayekhi
  Performing the concurrent analysis of organizational, departmental and individual scales alongside macro and micro levels of abstraction in temporal, spatial and event-driven contexts may significantly clarify the concept of learning, and develops the opportunities for More

  Performing the concurrent analysis of organizational, departmental and individual scales alongside macro and micro levels of abstraction in temporal, spatial and event-driven contexts may significantly clarify the concept of learning, and develops the opportunities for effective policy making accordingly. It would also help to improve the performance indicators of the system and its involved agents globally. Due to Ignorance of aforementioned concurrent analysis, the relationship between organizational learning and learning in lower scales has been ambiguous, and monitoring the effect of organizational learning on organization performance indicators has been neglected. Hence, whether organizational learning is an effective factor in the amplitude of organization competitive advantages or not has remained a serious question yet. However, a potential solution to this question has got conceivable through the multi-method system modeling perspective. Design and analysis of integrated multi-scale learning in organizations are now possible through hybrid modeling and simulation and the extended methodology presented in this research along with the related architecture. The outcome is a plain platform which embraces lucid modeling of complex abstract concepts including learning in organizations comprehensively. Future case studies may be required to further confirm the applicability of this methodology and underpin its administrative value. Manuscript profile
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  6 - A dynamic model of the impact of information and communication technology on GDP growth
  mohammad taghi taghavi fard melika mehrkam Esfandiar Jahangard Ameneh  Khadivar
  ICT plays an important role in accelerating economic growth, especially in today's age of the Internet and mobile telecommunications. Due to the upward trend in the use of information and communication technology in the countries of the world, this part of the economy d More

  ICT plays an important role in accelerating economic growth, especially in today's age of the Internet and mobile telecommunications. Due to the upward trend in the use of information and communication technology in the countries of the world, this part of the economy demands a lot of attention. Improved policies due to the impact of information and communication technology on the economy are one of the top programs of governments in developed and developing countries.A review of the literature shows that few systematic studies have examined the role of information and communication technology in GDP growth and the impact of various variables on the role of information and communication technology has not been sufficiently studied.The present study uses systematic approach and system dynamics methodology and examine interactions of ICT variables including ICT access, ICT development, ICT usage etc. with macroeconomic variables such as GDP, total factor productivity, ICT Capital examines ICT's value-added share of GDP and so on and presents a conceptual model of the role of ICT in GDP growth. The qualitative model designed in this study can be the basis for future quantitative research and mathematical simulation with a systematic approach to information and communication technology and GDP. Manuscript profile
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  7 - Evaluation of Policies for the Timely Implementation of Iran's Government Infrastructure Construction Projects Using System Dynamics (SD) Approach
  Mehrdad HajiEsmaili Ali mohammad Ahmadvand Marzieh  Samadi-Foroushani
  Objective: One of the major challenges in the management of construction projects is the lack of understanding of the mechanisms that cause delays in construction. In the meantime, government infrastructure construction projects have a more complex situation, so that th More

  Objective: One of the major challenges in the management of construction projects is the lack of understanding of the mechanisms that cause delays in construction. In the meantime, government infrastructure construction projects have a more complex situation, so that the success in the timely implementation of a construction project within the framework of government laws is one of the biggest goals and concerns of managers and agents involved in these types of projects. Methodology: It can be the present study identifies the mechanisms of project time delay risks based on system dynamics in order to identify and evaluate policies for the timely implementation of construction projects. For this purpose, first the literature and background were examined and during the semi-structured interview with the participants of the research, the effective factors on the timely implementation of the Iranian government construction project were identified. In the continuation of the dynamic model of the timely implementation of the Anrani project, the simulation was carried out using the data of the infrastructure operation project of the first section of Mobarakeh railway, Sefidasht, Shahrekord. Conclusion: After validation; According to the results of the sensitivity analysis of the system dynamics model, the exploitation policies during the construction project were identified in three strategies of providing project financial resources, project planning and control, and accountability of the project beneficiaries. In the following, it was also designed and applied to the model with selected combined policies. comparing the behavior of key model The combined selected policy Manuscript profile