SIGMA is based on the simple and intuitive Event Graph approach to simulation modeling. The SIGMA project evolved from doing simple event graphs on personal computers into implementing a powerful and practical method for simulation modeling. This Simulation Graphical Modeling and Analysis system is an integrated approach to building, testing, animating, and experimenting with discrete event simulations. Thousands of firms in the transportation, manufacturing, and even the gambling industry have been benefited from using this simulation software to improve their logic and production systems.

The steady increase in airport traffic has lead air transport managers to think a new design and management of Airports for the future. It appears to them that all aspects involved in the airport should be redesigned with the newly developed technology, especially the traffic control in the security check point. The problem with this traffic...