An interactive debugging expert system for GPSS/H simulation models
Article Abstract:
Many enhancements to simulation methodology which will reduce the burden on the simulation analyst are likely to come as a result of the integration of expert systems methodology with simulation. One phase of the simulation approach which appears to have particular promise for the integration of expert systems methodology is the model development task. This is perhaps the most time consuming step in the simulation approach and probably requires the highest level of expertise. Interestingly, the piece of the model development task which is almost certainly the most frustrating to the analyst - program debugging - has attracted very little attention from an expert system perspective. Thus, it would appear that there is both a need and an opportunity for expert systems that could assist system analysts in the program debugging task. The major objective of this research was to develop an expert system which could function as a debugging advisor to simulation analysts. A second objective was to evaluate the expert system and from the evaluation try to make generalizations about the most viable form and structure for such systems in order to guide future research efforts in this area. (Reprinted by permission of the publisher.)
Publication Name: SIMULATION
Subject: Engineering and manufacturing industries
ISSN: 0037-5497
Year: 1990
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Development of design guidelines for local area CSMA/CD networks
Article Abstract:
A local area communications network is complex with many interdependent variables which influence system performance. The purpose of this research was to develop simplified design guidelines that can be used by local area communications network designers. These guidelines apply to situations where designers are considering the CSMA/CD contention access protocol. A simulation model applied to this type environment can aid in design by helping to define the range of efficient system operation during the preliminary network configuration design and evaluation. The research includes the development of a GPSS simulation model that is used to analyze the effects of network design variables. These variables are considered in an experimental design that inputs simulation results to a multiple regression analysis. The resulting regression equation offers network designers a simplified tool useful in estimating message transmission delay. This will provide an easy method for network performance evaluation during the initial network design phase when sophisticated simulation or analytical modeling techniques are not applicable or not appropriate to the design environment. (Reprinted by permission of the publisher.)
Publication Name: SIMULATION
Subject: Engineering and manufacturing industries
ISSN: 0037-5497
Year: 1992
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