journal article
LitStream Collection
doi: 10.1177/003754979205900402pmid: N/A
The process of constructing a correct simulation model for a system is a difficult and time-consuming task in the simulation life-cycle. Simulation is a widely used methodology for checking the performance requirements of information systems. This paper describes a knowledge-based approach to constructing a simulation model of an information system. The approach consists of two major steps: first, the information system is modeled as a Petri Net and implemented in a logic-based language. Second, the executable representation of the Petri Net is used to automatically construct a simulation model of the information system in GPSS. The approach offers several benefits such as reducing system development time, allowing the flexibility of easy modifications to the information system configuration, and requiring little knowledge of simulation methodology. The knowledge-based system is implemented in PROLOG.
doi: 10.1177/003754979205900403pmid: N/A
Data-driven generic simulators have, for many years, been used to model a wide range of systems. Some such simulators are promoted as general purpose, while others are specific to particular problem domains. This paper considers how domain-specific data-driven simulators should be constructed using a modular approach which allows the simulator to be incrementally enhanced and ported easily to alternative computing environments. It also argues that generic simulators will not wholly replace simulation programming for specific applications.
doi: 10.1177/003754979205900404pmid: N/A
Real-time digital simulation and graphic animation limited band-width dynamic control systems can significantly enhance the interpretation and understanding of system responses. This paper outlines an efficient techniques for generating the graphics and the timing in real-time simulation and animation of the dynamic control systems using a high-speed high- performance PC-AT microcomputer. For illustration, the simulation and animation results for the adaptive computer controlled suspension of a combat vehicle and for the gun-turret stabilization and tracking control system for combat vehicle are presented.
Distante, Fausto; Piuri, Vincenzo
doi: 10.1177/003754979205900407pmid: N/A
APES is an integrated, flexible CAD environment developed for behavioral design, simulation and evaluation of array processor architectures. This paper discusses in detail the core of the system, i.e., the behavioral simulator. This is an interactive subsystem which allows one to set up and run the simulation of the array using the definition of the array architecture supplied by the user. This task computes the output results of the whole array, of each processing element and of each functional unit. The concept of time is also defined and handled by the simulator so to allow subsequent performance evaluation. Functions are available for tracing, for inserting break- points, for step-by-step execution and for selection of display format. The simulator interacts with the other modules of APES (e.g., the Fault Injector, the Reconfiguration Manager) and produces results which can also be post-processed by other modules of APES (e.g., the Diagnostic Evaluator) to aid the designer in evaluating particular characteristics of the architecture.
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