1 Scope
1.1 This European Standard:
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- defines RAMS in terms of reliability, availability, maintainability and safety and their interaction;
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- defines a process, based on the system lifecycle and tasks within it, for managing RAMS;
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- enables conflicts between RAMS elements to be controlled and managed effectively;
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- defines a systematic process for specifying requirements for RAMS and demonstrating that these requirements are achieved;
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- addresses railway specifics;
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- does not define RAMS targets, quantities, requirements or solutions for specific railway applications;
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- does not specify requirements for ensuring system security;
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- does not define rules or processes pertaining to the certification of railway products against the requirements of this standard;
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- does not define an approval process by the safety regulatory authority.