ISL's simulation systems have been utilized worldwide for optimizing container terminals, harbor planning and analyzing transportation networks. Like chess players during a championship terminal operators have to plan the next moves on their terminal strategically. Thus the CHESSCON family will support them finding the best move. CHESSCON Capacity (former CAPS) may be used for Greenfield terminals as weel as for existing ones. Looking at the proposed vessel mix and the quay layout, terminal's quayside capacity as well as the required size of the stacking area is determined. CHESSCON Simulation (former SCUSY) may be used for the strategical and tactical planning phase. I.e. for finding the best layout, comparing various kinds of operation systems (combination of equipment types) and testing strategies like pooling. CHESSCON Virtual Terminal (former ViTO) is the newest product in this family. ViTO provides a virtual terminal, that behaves like the physical one. It is directly coupled to the TOS. Thus the strategies within the TOS may be tested and fine-tuned. Start-up times of terminals are shortened using this technology. Furthermore the control staff may use the system to get trained in special situations and may replay bygone problematic shifts. All these products are designed to be used by the terminal operator himself. Within the training provided the first models of the terminals are developed together. Afterwards terminal's staff should be in the position to use the models and to change them as neccessary due to external demands (layout changes as well as varying equipments data). Within these tools and studies more and more ecological topics like pollutant emission, noise and energy consumption are in demand besides the topics of economy and efficiency. The tools of the ISL are proven within more than 50 projects worldwide. Container terminal simulation and container terminal emulation are known technologies for huge terminals. Like chess players terminal operators have to find the best strategies for the terminal operation and have to react to changing demands on the board. They use the tools for strategic and tactical planning as well as for the start-up of new terminal components. They optimize terminal's day-to-day processes by fine-tuning TOS parameters and training the control staff to become "grandmasters" in terminal operation. With the development of the CHESSCON simulation and emulation products, the transition from huge and expensive projects to a product took place.