The objective of the project was to develop the web-based integrated set of software services as a tool to enhance the capabilities of crisis planners and crisis managers in both private and governmental organizations. MEDSI has enabled them to utilize various information sources for better monitoring and reduction of potential and actual risks and for more effective response in case of threats imposed especially to the subjects of the critical infrastructure. MEDSI was also be capable to create, maintain and optimise the typical scenarios and procedures how to solve the situations. To assure that, the specific database schema was developed with possibility to acquire or access both internal MEDSI-specific database and external systems. Selected existing OpenSource SW packages were used as a base for integration. Software, utilizing the data fusion of geospace, organizational and other territorial and operational area were created and integrated in a standardized IT environment. The standardization and openness allow the possibility to further grow this seed in national and international levels and to assure the interoperability with other systems. The system can be used by users from general security area, as well as, environmental protection, utilities management, airports and seaports, healthcare, transports, roads, energy plants, borders control etc. The MEDSI system has the potential to be installed in the organization or agency information environment and interoperate with other systems via standardized messaging. A part of MEDSI was be also the simulation subsystem allowing designing, optimising and interpreting various scenarios and contributing to the training of crisis management staff and support of exercises. Pilot MEDSI system was installed at the real site and tested with the real scenario (Municipality of Holon, Israel). More information about the project partners and results achieved can be found at MEDSI project consortium web site www.medsi.org .