ABSTRACT

The main purpose of modelling systems and processes, especially complex ones of the Cyber-Physical-Social type, is to create opportunities for simulation studies. Chapter 14 presents the basics of the methodology for building simulation models and using them to generate various cases that have not yet been observed in practice but may occur in the future. Particularly, this applies to hazardous events that pose a threat to the environment, human safety, and the continuity of production or service processes. The first section discusses the principles of the two basic methods on which simulation models are based, namely System Dynamics Modelling and Simulation (SDMS) and Discrete Event Simulation (DES). The second section was devoted to a practical example of simulating a complex system behaviour under uncertainty. The main objective of this example is to demonstrate the feasibility of using the proposed framework to assess the vulnerability and resilience of global supply networks. The subject of the research was a commodity steel plant located in Central Europe, and the main goal of the research was to determine the recommended actions of decision-makers (modelled using a multi-agent technique) in the occurrence of disruptions in the supply of raw materials necessary for steel production.