Analysis of the Granularity of Task Decomposition in Enterprise Alliance Based on System Dynamics

2011 ◽  
Vol 314-316 ◽  
pp. 487-491
Author(s):  
Xian Zhang

The influence brought by the granularity of task decomposition on the key factors of enterprise aliance was studied based on system dynamics method. These factors includs inter-restriction, product manufacturing time, collaboration fee, Alliance leader benefit, capability and compatibility. Causality diagram and system dynamics model were established for these factors. This paper also developed a simulation program for the granularity of task decomposition based on the system dynamics model and validated the effectiveness of the proposed model by a qualitative analysis. The results show that it is a workable method to research the granularity of task decomposition in enterprise aliance using system dynamics theory.

2019 ◽  
Vol 8 (3) ◽  
pp. 2741-2746

Rice is a strategic food commodity in Indonesia, so the availability and consumption needs of rice need to be considered. in line with population growth and the decline in the area of agricultural land also influences the management of rice availability and has the potential to become a rice supply deficit if it is not managed properly. The purpose of this paper is to develop a pattern of relations between rice availability and rice consumption so that a balance occurs in the management of rice availability. The method used is the System Dynamics model, where this method is able to formulate a complex system by utilizing historically existing data to form a model, therefore this approach is expected to form a performance model of balance between rice availability and consumption which can then be simulated to predict needs in the future so that it can be used for faster and more accurate decision making


2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Bulim Choi ◽  
Su-il Park ◽  
Kang-Dae Lee

Over the past decade, intermodal transport focused on reducing external cost, congestion, and carbon dioxide emissions, which have been caused by road transportation. Many policy measures for the modal shift from road to rail have been introduced to address these problems. This study aims at examining the impact of policy measures on promoting modal shift. In line with the previous research on modal shift, a system dynamics model, which can calculate both expected and real modal share, was developed. The proposed model was applied to the steel industry for steel rolled coils transport in South Korea. Under our analysis conditions, the modal shift by the containerization occurred more rapidly than taxations. The major contributions of this paper are as follows: (1) supporting the model to anticipate the modal shift from road to rail and (2) suggesting new insight to promote the modal shift using containerization.


2016 ◽  
Vol 113 (42) ◽  
pp. 11726-11731 ◽  
Author(s):  
Yi Yu ◽  
Gaoxi Xiao ◽  
Jie Zhou ◽  
Yubo Wang ◽  
Zhen Wang ◽  
...  

Complex systems, from animal herds to human nations, sometimes crash drastically. Although the growth and evolution of systems have been extensively studied, our understanding of how systems crash is still limited. It remains rather puzzling why some systems, appearing to be doomed to fail, manage to survive for a long time whereas some other systems, which seem to be too big or too strong to fail, crash rapidly. In this contribution, we propose a network-based system dynamics model, where individual actions based on the local information accessible in their respective system structures may lead to the “peculiar” dynamics of system crash mentioned above. Extensive simulations are carried out on synthetic and real-life networks, which further reveal the interesting system evolution leading to the final crash. Applications and possible extensions of the proposed model are discussed.


2018 ◽  
Vol 24 (4) ◽  
pp. 318-330 ◽  
Author(s):  
Shengyu Guo ◽  
Pan Zhang ◽  
Jianying Yang

To address the gap, that is, few studies have explored the influence of the participants’ interactions with one another during construction quality supervision, this paper proposes a system dynamics model based on evolutionary game theory to describe the complex and dynamic interactions among tripartite stakeholders in China, including the project owner (PO), construction supervising engineer (CSE), and construction contractor (CC). First, the replicated dynamic equation set is established in terms of expense targets. Second, the equilibrium solutions of the equation set are obtained to test strategy options. The trends of system fluctuations caused by penalty and reward changes are also analyzed. Finally, the stability of the proposed model is improved by integrating a dynamic penalty–reward scenario into the evolutionary strategy of the PO. Simulation results show that: 1) the evolutionary stable strategy does not exist in initial interactions, 2) the degrees of penalty and reward considerably affect the CC’s rate variable, and 3) the dynamic penalty–reward scenario could effectively improve the stability of the proposed model. The unsteadiness of the quality supervision system and the stability control scenario could help in understanding the impact of interactions among stakeholders and provide suggestions for optimizing quality supervision procedures.


2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Xiaojuan Zhang ◽  
Yongheng Zhang ◽  
Feng Zhang ◽  
Xiuyun Yang

The demand of embedded artificial intelligence system for powerful computing power and diversified application scenarios will inevitably bring some new problems. This paper builds the system dynamics model of embedded system based on artificial intelligence (AI). By analyzing the causal relationship between the elements of the system dynamics model, the state equation is established, and the parameters are estimated and tested. At the same time, the influence of the model simulation experiment on the relevant factors is evaluated. The simulation results show that the proposed model is effective and efficient.


2014 ◽  
Vol 31 (05) ◽  
pp. 1450031
Author(s):  
Pei-Leen Liu ◽  
Huai-Ku Sun ◽  
Yue-Tarng You

The Lanchester Model has been widely used to explain the main features of the battle. However, its application to actual cases seems to be limited. The purpose of this study is to attempt to extend the Lanchester Model with the System Dynamics approach in order to better suit the real modern AirLand Battle case. To demonstrate how the AirLand Battle System Dynamics model works and how it provides easier ways to account for variables, normally present in real combat situations, three common tactical scenarios are employed for simulation. The results indicate that the developed model can fully describe AirLand Battle and reflect the synergy that results from the interaction of strategies and force redeployment. The proposed model, in addition, allows users to easily adjust settings when simulating different scenarios.


2017 ◽  
Vol 26 (44) ◽  
pp. 71 ◽  
Author(s):  
Javier Arturo Orjuela-Castro ◽  
Milton Mauricio Herrera-Ramírez ◽  
Wilson Adarme-Jaimes

This paper evaluates the incidence of packing asymmetries, resulted from the use of heterogeneous packaging materials by different mango supply chain actors in Colombia, on performance measures of inventory, transportation, and quality. A system dynamics model was proposed based on the literature review on inventory and transportation logistics, the studies on asymmetries in supply chain, packing, and packaging, and the results of the characterization of the fruit chain logistics in various departments of Colombia from 2012 to 2013. We used the proposed model to test the following hypothesis: “The asymmetry in the packaging, derived from the actors’ individual management, creates inefficiencies that may be avoid if the packaging of the fruit is done thinking on the chain”. The developed simulation model allowed us to prove the proposed dynamic hypothesis. Forrester’s model includes four echelons for the supply chain: production, processing, wholesale, and retail, as well as warehousing, transportation and information.


2020 ◽  
Vol 9 (1) ◽  
pp. 1-17
Author(s):  
Nayara Teixeira Santos ◽  
Gisele Tessari Santos ◽  
Washington Santos Silva ◽  
Wanyr Romero Ferreira

The use of system dynamics techniques to model the sales and operations planning (S&OP), associated with the economic and financial processes, is an innovative proposal. The objectives of this article are to model and simulate the S&OP process integrated with the financial management in a Brazilian lime processing industry, based on the system dynamics approach. Initially, the model was validated. Then, over twenty scenarios were simulated to assess the behavior of the system with its key factors variation. In the microenvironment scenarios, the company's internal perspective was the only element taken into account. In turn, regarding the macro environment scenarios, the basis was the projection of lime consumption related to the country's GDP. The results have genuinely contributed to the industry researched, since the lime processing industry is struggling with obtaining enough supply due to lime acquisition price fluctuations and, consequently, the oscillation of its production costs.


2012 ◽  
Vol 433-440 ◽  
pp. 2730-2736
Author(s):  
Xi Wen Feng ◽  
Hui Wen Jia ◽  
Qian Feng

This paper is based on the analyzing the features and the questions of inventory management of successive manufacturing enterprises, using the inventory management theory and the system dynamics theory, on the assumption of combining actual situation of inventory management of Hongyu Corporation, analyzes the relations of kinds of factors which affect the inventory management, using the system dynamics method, establishes the causality graph of kinds factors which affect the inventory management in Hongyu Corporation, including the causality graph of cooperation part inventory management, semi products inventory management, profit and the whole inventory management in Hongyu Corporation. Based on the causality graphs, the paper establishes the system dynamics model of inventory management of Hongyu Corporation. The system dynamics model of inventory management in Hongyu Corporation which was built in this paper is accurate and steady, especially satisfied to the practical production of Hongyu Corporation and successive manufacturing enterprises, it greatly helps to raise the inventory management level of Hongyu Corporation, so this model has great significance in both theory and reality for inventory management of successive manufacturing enterprises.


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