SimEvent

SimEvent is a discrete-event simulation modeling language developed by the Department of Computer Science and Engineering at the University of Moratuwa, Sri Lanka. It is designed for modeling and simulating complex systems, particularly those involving queues, resources, and events. The language aims to provide a straightforward yet powerful tool for analyzing system performance, identifying bottlenecks, and evaluating design alternatives.

The core concepts in SimEvent include entities, which represent the objects moving through the system, and resources, which are limited assets that entities require to proceed. Events are actions that occur at specific points in time, triggering state changes within the simulation. SimEvent utilizes a graphical user interface (GUI) that allows users to visually construct models by dragging and dropping pre-defined blocks representing different system components. These blocks can be interconnected to define the flow of entities and their interactions with resources.

Key features of SimEvent include its ability to handle complex queuing disciplines, dynamic resource allocation, and various event scheduling mechanisms. The simulation results are typically presented through statistical reports and graphical outputs, enabling users to gain insights into metrics such as average waiting times, resource utilization, and throughput. SimEvent is often employed in areas like manufacturing, logistics, telecommunications, and healthcare systems where discrete-event simulation is a valuable analytical technique.