This Malaysian Standard covers those aspects to be applies to any software forming part of a safety-related system or used to develop a safety-related system within the scope of IEC 61508-1 and IEC 61508-2. This Malaysian Standard was an establishes requirements information relating to the software safety validation to be passed to the organisation carrying out the electrical/electronic/programmable electronic (E/E/PES) integration and safety lifecycle phases and activities which shall be applied during the design and development of the safety-related software include the application of measures and techniques, which are graded against the safety integrity level, for the avoidance of and control of faults and failures in the software. This Malaysian Standard provides requirements for information relating to the software safety validation to be passed to the organisation carrying out the E/E/PES intergration and requirements to be met by the organisation carrying out modifications to sa