scope:

This part of IEC 60300 gives guidance on specifying the required dependability characteristics in specifications, together with specifications of procedures and criteria for verification and validation. The guidance provided includes the following: - advice on specifying quantitative and qualitative reliability, maintainability, availability and maintenance support requirements; - advice to purchasers of a system on how to ensure that the specified requirements will be fulfilled by suppliers; - advice to suppliers to help them to meet purchaser requirements. Other documents, such as legislation and governmental regulation may also place requirements on systems and these should be applied in addition to any specifications derived in accordance with this standard.