1. Operating context

1.1 Notion of system

At the design stage of a new ship, destined to be operational for some thirty years, the telecoms system is just one part of a larger whole, including the hull, propulsion, weapons, etc. The telecoms system itself is made up of a network infrastructure, various applications carrying all types of information (software belonging to the sub-systems forming part of the telecoms system, and using data, voice or other information). The telecoms system itself comprises a network infrastructure, various applications carrying all types of information (software belonging to the sub-systems forming part of the telecoms system and using data, voice or video information), and the physical means of transmission/reception to and from the outside world.

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