Railway applications - Specification and demonstration of reliability, availability, maintainability and safety (RAMS) - Part 1: Generic RAMS process

IEC 62278-1:2025 addresses railway specifics, enables conflicts between RAMS elements to be controlled and managed effectively.

This document specifies:

a) a process, based on the system life cycle and tasks within it, for managing RAMS;

b) a systematic process, tailorable to the type and size of the system under consideration, for specifying requirements for RAMS and demonstrating that these requirements are achieved.

This document does not specify:

c) RAMS targets, quantities, requirements or solutions for specific railway applications;

d) rules or processes pertaining to the certification of railway products against the requirements of this document;

e) an approval process for the railway stakeholders.

This document is applicable to railway application fields, including signalling, rolling stock and fixed installations, and specifically:

f) to the specification and demonstration of RAMS for all railway applications and at all levels of such an application, as appropriate, from complete railway systems to major systems and to individual and combined subsystems and components within these major systems, including those containing software; in particular:

- to new systems