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Railway applications - Communications, signalling and processing systems - Software for railway control and protection systems

Executive summary

Requirements for the development of programmable electronic systems (software) for use in railway control and protection applications.

Abstract

This European Standard specifies procedures and technical requirements for the development of programmable electronic systems for use in railway control and protection applications. It is for use in any area where there are safety implications. These may range from the very critical, such as safety signalling to the non-critical, such as management information systems. These systems may be implemented using dedicated microprocessors, programmable logic controllers, multiprocessor distributed systems, larger scale central processor systems or other architectures.

This standard is applicable exclusively to software and the interaction between software and the system of which it is a part.

This standard concentrates on the methods which need to be used in order to provide software which meets the demands for safety integrity which are placed upon it by these wider considerations.

This European Standard applies to all software used in development and implementation of railway control and protection systems including:

- application programming;

- operating systems;

- support tools;

- firmware.

History and related standards

This European Standard includes the following cross references:

EN ISO 9001, EN ISO 9000-3.

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