• Title, Summary, Keyword: System Dynamics

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Analysis on Research Trends of Korean System Dynamics : Results and Reflections of 7 Years and Proposals (한국 시스템다이내믹스 연구경향분석 : 7년의 성과와 반성, 그리고 제안)

  • Hong, Young-Kyo;Jung, Seok-Hwan
    • Korean System Dynamics Review
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    • v.8 no.1
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    • pp.25-47
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    • 2007
  • This paper executes positive analysis about the thesis of 100 volumes which were published for 2000-2006 years through 'Korean System Dynamics Journal', to grope and to see the academic developments of Korean System Dynamics. The summarized analysis results are same as follows. First, Korean System Dynamics researches appear that quantitative researches are much more than qualitative ones. Second, the researches that aimed to solve problem are relatively much more than theory-oriented ones. Third, System Dynamics researches in the department of social science are more abundant than that of science and engineering. Based on these results, for establishing of Korean System Dynamics identity, we will work hard to study qualitative researches, increase the research domains and elevate the academic statue of System Dynamics.

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The System Dynamics Model Development for Management Performance Forecasting of Small and Medium Hospital (BSC기반의 중소병원 경영성과예측 시스템다이내믹스 모델개발)

  • Chung, Hee-Tae;Kim, Yoon-Sin;Kwak, Sang-Man;Lee, Yong-kyoon
    • Korean System Dynamics Review
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    • v.8 no.2
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    • pp.209-234
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    • 2007
  • Recently, balanced scorecard is widely used in the public sector as well as in the private sector. Balanced scorecard system of a particular hospital is a very useful tool in the sense that it shows various measures for the management including the traditional financial measures. However, since it does not show the impact of action items, managers have to analyze his potential decisions. On the other hand, a system dynamics model for the management of a hospital can be used to predict future management status. In this paper, a balanced scorecard system with a system dynamics model is developed for a small sized hospital, and the feasibility and applicability of the system have been tested. It turns out the combination of the balanced scorecard and system dynamics technique can be comprised each other. The balanced scorecard system can take advantage of the data forecasted by the system dynamics model including the implementation of action items taken today. On the other hand, the key performance indicators and action items from the balanced scorecard system provide guidelines the scope and direction of the system dynamics model. The additional efforts of developing a system dynamics model are well compensated by the additional colorful functionalities of the system. This paper also covers the future research areas for the combined system to be more effectively developed.

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한국 시스템다이내믹스 연구경향분석;7년의 성과와 반성, 그리고 제안

  • Hong, Yeong-Gyo;Jeong, Seok-Hwan
    • Proceedings of the Korean System Dynamics Society
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    • pp.71-92
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    • 2007
  • This paper executes positive analysis about the thesis of 100 volumes which were published for 2000-2006 years through 'Korean System Dynamics proceeding', to grope and to see the academic developments of Korean System Dynamics. The summarized analysis results are same as follows. First, Korean System Dynamics researches appear that quantitative researches are much more than qualitative ones. Second, the researches that aimed to solve problem are relatively much more than theory-oriented ones. Third, System Dynamics researches in the department of social science are more abundant than that of science and engineering. Based on these results, for establishing of Korean System Dynamics identity, we will work hard to study qualitative researches, increase the research domains and elevate the academic statue of System Dynamics.

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A Study on the Potentials of System Dynamics as a Tool to Understand the Community Welfare Practice (지역사회복지실천 이해 도구로서 시스템 다이내믹스의 가능성에 관한 고찰)

  • Cho, Sungsook
    • Korean System Dynamics Review
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    • v.14 no.1
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    • pp.89-104
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    • 2013
  • This study aims to explore the potentials of System Dynamics as a tool to understand the community welfare practice by paying attention to the strengths of System Dynamics to complement the weaknesses of the theories and studies of the community welfare practice. The contents of this study are as follows. First, it draws the limitations of its theories and studies by reviewing the literatures related. Second, it outlines the characteristics of the community welfare practice process as well as the strengths of System Dynamics as a tool to understand the community welfare practice. Third, it presents a causal loop model of System Dynamics applied to the community welfare practice process. Lastly, it concludes with the suggestions and implications of the key research findings. This study is expected to be a basic study to highlight the potentials of System Dynamics as a tool to understand the community welfare practice.

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Issues and Methodological Status of System Dynamics (시스템다이내믹스의 발전과 방법론적 위상)

  • 문태훈
    • Korean System Dynamics Review
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    • v.3 no.1
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    • pp.61-77
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    • 2002
  • This paper reviews issues and methodological status of system dynamics and suggest some research agenda for its development in Korea. After reviewing some characteristics of system dynamics approach, including dynamic feedback perspective and endogenous point of view, the paper pointed out methodological characteristics of system dynamics. It seems to be the most notable characteristics of System Dynamics that it use both quantitative and qualitative approach in explaining and modelling reality. Besides, System Dynamicists rely more heavily on refutationism than instrumentalism and this allows System Dynamicists follow more strict way of scientific inquiry. For the development of System Dynamics in Korean academic circle, developing training program and curriculum, networking scattered System Dynamicist all over the country, would be the most important task.

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System Dynamics Modelling on Religious Populations (종교 인구의 다이내믹스에 관한 시론적 모델)

  • Kim, Dong-Hwan
    • Korean System Dynamics Review
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    • v.15 no.3
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    • pp.37-59
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    • 2014
  • This paper is to study dynamics of populations of religions. As human population is a crucial source of social dynamics, the religious population is a driving force that changes political and cultural landscape of society. Although many christian scholars have reported important causal factors in changing population of christian world, there are few studies on the dynamics of religious population in system dynamics. This paper interprets these dynamic mechanisms in terms of feedback loops and constructs a basic system dynamic model to forecast future trend of religious population in Korean society.

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Descriptor Type Linear Parameter Dependent System Modeling And Control of Lagrange Dynamics

  • Kang, Jin-Shik
    • 제어로봇시스템학회:학술대회논문집
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    • pp.444-448
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    • 2003
  • In this paper, the Lagrange dynamics is studied. A state space representation of Lagrange dynamics and control algorithm based on the state feedback pole placement are presented. The state space model presented is descriptor type linear parameter dependent system. It is shown that the control algorithms based on the linear system theory can be applicable to the state space representation of Lagrange dynamics. To show that the linear system theory can be applicable to the state space representation of Lagrange dynamics, the LMI based regional pole-placement design algorithm is developed and present two examples.

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Study on the Role of Hospital Coordinators with System Dynamics Approach (병원 코디네이터도입이 병원경영성과에 미치는 영향분석)

  • Chung, Hee-Tae
    • Korean System Dynamics Review
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    • v.11 no.4
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    • pp.5-23
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    • 2010
  • The competition between hospitals has become an issue for many hospitals because of the sudden increased number of health providers. As the marketing or customer management have become important factors as means of competition, a number of hospital have been considered or already adopted the coordination system. A system dynamics model is developed to see the effect of the hospital coordination system. This paper after briefly explaining the structure of the system dynamics model, discusses the roles of the hospital coordination system with examples. The system dynamics model quantifies through simulations the process of effects of coordination system on the number of customers, productivities of employees (nurses and doctors), and finally the financial status. As a conclusions of the simulations and their analysis, it is concluded that coordination system could be more effective than the investment to the facilities. Since the study is based on only one hospital case, it is limited. However, it explains the mechanism of the coordination system quantitatively as well as qualitatively.

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System Dynamics with a Agent Based Modeling Concpet (Agent Based Modeling 기법을 활용한 시스템다이내믹스 모델링)

  • Jeon, So-Yun;Lee, Hye-Jun;Kwak, Sang-Man
    • Korean System Dynamics Review
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    • v.7 no.1
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    • pp.27-49
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    • 2006
  • A system dynamics model is developed to investigate the applicability of the agent based modeling concept in the system dynamics model. The assumed problem is to forecast the size and structure of the organization with the developing market environment. The agent based modeling concept is applied to the organization part, and the other parts of the model such as market, facilities, etc. are developed with the traditional system dynamics technique. The simulation results show the agent based modeling part can be combined with the traditional system dynamics modeling with more precisions. However, the complexity increases and the simulation times are longer than those of the traditional method.

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Motivation Dynamics : System Dynamics Approach for Analyzing Dynamic Motivation Model Using VENSIM (모티베이션 다이내믹스 : VENSIM을 이용한 성취동기모형의 시스템 다이내믹스 분석)

  • 손태원;정한규
    • Korean System Dynamics Review
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    • v.1 no.1
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    • pp.57-79
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    • 2000
  • Most model constructs in organization studies are descriptive in nature, and the conclusions relating to the model behavior over time are speculative. The usefulness of System Dynamics as a methodology for modeling and testing dynamic behavioral hypotheses in organizational behavioral studies is presented, and how to construct a System Dynamics model using simulation software(VENSIM) is shown, The well-know March and Simon motivation model is used to demonstrate the step by step application of System Dynamics to model of this type. The dynamic behavior of the model, both transient and steady state, is obtained, Even though the paper has focused on one model in the area of individual behavior, the approach is general and can be applied to other areas of organizational behavior as will. The usefulness of System Dynamics as a methodology for theory building is identified as well.

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