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Two-moment analysis of open queueing networks with general workstation capabilities

Author: Harrison, J. Michael ; Pich, Michael T.INSEAD Area: Technology and Operations ManagementIn: Operations Research, vol. 44, no. 6, nov-dec. 1996 Language: EnglishDescription: p. 936-950.Type of document: INSEAD ArticleNote: Please ask the Library for this articleAbstract: Queueing networks models are often constructed and analysed in order to assess the response-time characteristics of some technological system. In a manufacturing context, for example, analysis of such a model may be undertaken to better understand order fulfilment delays that are caused by statistical variability in demand and processing. Complex network models can always be studied by means of discrete-event simulation but analytical approximations are more effective than brute-force simulation for building intuition. This paper extends existing two-moment approximation methods for queueing networks models to allow workstations with complex internal structure - a model feature that is crucial in the treatment of realistic manufacturing systems. The extension is accomplished by means of a heavy traffic principle whose power and utility are not generally appreciated
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Queueing networks models are often constructed and analysed in order to assess the response-time characteristics of some technological system. In a manufacturing context, for example, analysis of such a model may be undertaken to better understand order fulfilment delays that are caused by statistical variability in demand and processing. Complex network models can always be studied by means of discrete-event simulation but analytical approximations are more effective than brute-force simulation for building intuition. This paper extends existing two-moment approximation methods for queueing networks models to allow workstations with complex internal structure - a model feature that is crucial in the treatment of realistic manufacturing systems. The extension is accomplished by means of a heavy traffic principle whose power and utility are not generally appreciated

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