1404 Multi-agent service flow simulation using Scene Transition Nets(STN)

2009 ◽  
Vol 2009.19 (0) ◽  
pp. 192-197
Author(s):  
Takeshi Tateyama ◽  
Seiichi Kawata ◽  
Yoshiki Shimomura ◽  
Tamio Arai ◽  
Yasuo Umeda ◽  
...  
Author(s):  
Takeshi Tateyama ◽  
Satoshi Mikoshiba ◽  
Yoshiki Shimomura ◽  
Seiichi Kawata

A new academic field, “service engineering” has emerged; it involves active investigation for increasing the productivities of service industries. However, there are only a few effective tools for the simulation and evaluation of complex services that have been designed using concepts from the field of service engineering. To overcome this shortcoming, the authors propose a multi-agent service flow simulation method using scene transition nets (STNs) that is a very useful graphical modeling and simulation method for application to discrete-continuous hybrid systems. This method treats services as complicated multi-agent and hybrid systems similar to manufacturing systems. To obtain realistic values of customer satisfaction, the authors input satisfaction-attribute value (S-AV) functions, which are often used in service engineering in service flow models using STN. This method visualizes discrete flows of services and temporal changes in the values of customer satisfaction and various other variables of service models. The authors present the results of the simulation of an online DVD rental service involving multiple agents to show the effectiveness of the proposed method that uses an STN GUI simulator developed by them.


Author(s):  
Takeshi Tateyama ◽  
Satoshi Mikoshiba ◽  
Koji Kimita ◽  
Kentaro Watanabe ◽  
Ryosuke Chiba ◽  
...  

Recently, a new academic field, “service engineering” has been very actively investigated. However, there are few effective methods and tools to simulate and evaluate services designed based on the concept of service engineering. In the past, the authors proposed a service flow simulation method using scene transition nets (STN) which is a graphic modeling and simulation method for discrete-continuous hybrid systems. However, this method does not consider how to model and simulate complex service flows including multiple layered, parallel, and interrupted structures and it is difficult to construct STN models of such complex systems using the existing STN concepts. In this paper, the authors propose a new STN modeling method using “multi-aspect STN modeling “ concepts in order to provide easy methods for modeling of such complex services. The experimental results for the modeling and simulation of a nursing service demonstrate the effectiveness of the proposed method.


2011 ◽  
Vol 2011.21 (0) ◽  
pp. 91-96
Author(s):  
Takeshi Tateyama ◽  
Satoshi Mikoshiba ◽  
Kentaro Watanabe ◽  
Ryosuke Chiba ◽  
Yoshiki Shimomura ◽  
...  

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