The complexity of systems and their multi-faceted relationships mean that the combined application of simulation methods, or hybrid simulation, will enable synergies across techniques and will provide greater insights to problem solving. In this paper we present a hybrid simulation case study in which two models have been developed; an Agent-Based Simulation (ABS) and a Discrete-Event Simulatio...

Problem statement: The heterogeneity in the choice of simulation platforms for real time scheduling stands behind the difficulty of developing a common simulation environment. A Discrete Event Simulation (DES) for a real time scheduling domain encompassing event definition, time advancing mechanism and scheduler has yet to be developed. Approach: The study focused on the proposed and the develo...

This paper presents an ARENA®-based library for the development of Timed Colored Petri Net (TCPN) models. In this way, the strengths of Petri Nets and Discrete Event Simulation (DES) are combined in a powerful tool for modeling and analysis of systems. The use of the library is illustrated on a cosmetics manufacturing facility in Bogotá (Colombia). This facility was modeled via both TCPNs and a...

This paper presents an identification method of partially observable Discrete Event Systems (DES) using ordinary Petri Nets. The proposed method is absolute, sequential and multiple. It consists in building the compartmental model, computed off-line, for a DES in a Petri Net (PN) form. The developed method is based on the use of the input/output sequences constructed during the system evolution...

In manufacturing industry, Discrete Event Simulation (DES) is applied in just a small fraction of the cases where it could give significant value. The complexity of the DES technology itself is one barrier to achieving its full potential in manufacturing system design. This paper focuses on methodologies which can be used in studying the modelling process, with the specific intent of integratin...

This paper presents an empirical study on the comparison of model building in System Dynamics (SD) and Discrete-event Simulation (DES). We study the model building process of 10 expert modellers (5 SD and 5 DES modellers), who talk aloud while building prison simulation models. The transcripts were coded based on 7 modelling topics: problem structuring, conceptual modelling, data inputs, model ...

This paper explores the model development process in discrete-event simulation (DES) by reporting on an empirical study that follows six expert modellers while building simulation models. DES is a widely used modelling approach, however little is known about the modelling processes and methodology adopted by modellers in practice. Verbal Protocol Analysis is used to collect data, where the part...

The time-line in Discrete Event Simulation (DES) is a sequence of events defined in a numerable subset of R. When it comes from an experimental measurement, the timing of these events has a limited precision. This precision is usually well-known and documented for each instruments and procedures used for collecting experimental datas. Therefore, these instruments and procedures produce measurem...

this article proposes composition of fuzzy sets theory with discrete-event simulation and puts it into application in order to model uncertain activity duration in simulating a real-world system. the purpose of this paper is to assess the usefulness of fuzzy simulation for modeling uncertain activity duration, especially when insufficient or no sample data is available. in this research, fuzzy ...