Abstract
It is well known that the complex system operation requires the use of new scientific
tools and computer simulation. This paper presents a modular approach for modeling and
analysis of the complex systems (in communication or transport systems area) using Hybrid Petri
nets. The performance evaluation of the hybrid model is made by a simulation methodology that
allows building up various functioning scenarios. A Decision Support System based on the above
mentioned methodologies of modeling and analysis will be designed for performance evaluation
and time optimization of large scale communication and/or transport systems.
