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Brief Description of QNA

01 January 1986

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The Queueing Network Analyzer (QNA) is a software package developed in the Operations Research Department of AT&T Bell Laboratories for doing performance analysis of systems that can be modeled as queuing networks. Among the systems that can be modeled usefully this way are communication networks, computers (including switching systems) and manufacturing facilities. 

The first version of QNA was completed for use by AT&T in 1983. It was first described publicly in two papers, "The Queueing Network Analyzer" and "Performance of the Queueing Network Analyzer," by W.Whitt in the Bell System Technical Journal, Vol. 62, No. 9, November 1983, pp. 2779-2843. 

The QNA package was released for outside distribution in 1984. Outside distribution is being handled by Larry K. Isley, Technology Licensing Manager, AT&T, 10 Independence Boulevard, Warren, NJ 07060 (telephone: 201-580-5912).