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## On Approximate Performance Evaluation of Manufacturing Systems Modelled with Weighted T-Systems.

Pérez-Jiménez, C.J.;
Campos, J.;
Silva, M.
In:
IEEE-SMC Multiconference on Computational Engineering in Systems Applications (CESA'96), Lille, France: *Proceedings of the IMACS*, pages 201-207.
July 1996.

Abstract:
Approximate throughput computation of a class of discrete event systems
(DES) modelled with stochastic weighted T-systems is considered.
Stochastic weighted T-systems are the weighted extension of well known
stochastic marked graphs Petri net subclass and are usually presented as a
useful model to deal with bulk consumptions or productions of resources in
manufacturing systems working on a cyclic basis. The iterative response
time approximation technique that we present is deeply based on a previous
structural decomposition and aggregation of the net model. Experimental
results on several examples generally have and error of less than 5%. The
state space is usually reduced by more than one order of magnitude;
therefore, the analysis of otherwise intractable systems is possible.

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