TS EN 60300-3-4
Dependability management - Part 3-4: Application guide - Guide to the specification of dependability requirements
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.
NOTE 1 Whilst mainly addressing system and equipment level reliability, many of the techniques described in the
different parts of IEC 60300 may also be applied to products, items or at the component level. The term system is
used throughout this standard.
NOTE 2 This standard does not give guidance on the management of dependability programmes or on the various
activities necessary to fulfil stated availability, reliability, maintainability and maintenance support requirements.
For this general guidance, see other standards.
NOTE 3 Safety and environment specifications are not directly considered in this guide. However, much of the
guidance in this standard could also be applied to safety or environmental specification.
NOTE 4 Specifications for the dependability of a service are not considered in this guide. This includes the
provision of a service such as those provided through Public-Private Partnership procurements.
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About This Item
TS EN 60300-3-4 provides guidance on how dependability requirements should be specified in a specification. Its focus is on expressing required system-level reliability, maintainability, availability and maintenance support needs in a way that is clear, verifiable and suitable for verification and validation. In practice, this helps align the technical expectations of the purchaser and the supplier.
Technical focus in requirement specification
The standard gives advice on specifying both quantitative and qualitative dependability requirements. The point is not only to state target values, but also to define how those requirements will be measured, how they will be verified, and what criteria will be used for acceptance. This allows reliability, maintainability, availability and maintenance support to be treated as linked technical attributes rather than isolated statements.
- Guidance for embedding dependability requirements into specifications
- Support for defining procedures and criteria for verification and validation
- Advice to purchasers on how to increase confidence that suppliers will meet the stated requirements
- Advice to suppliers to help them address purchaser expectations effectively
Boundaries of the guide and practical context
This is not a general management standard for running a dependability programme; it is primarily an application guide for writing requirements and structuring technical specifications. The standard does not directly address service dependability, and safety and environmental requirements are not its main focus. Even so, the same specification discipline can be useful when those topics are being defined in parallel. Where legislation or governmental regulation applies, those requirements need to be considered alongside the guidance in this standard.
In general technical terms, dependability management is the discipline of planning and controlling a system’s ability to perform its required function under stated conditions. This standard concentrates on the specification side of that discipline: defining what is wanted, how it will be measured, and how compliance with the stated requirements will be demonstrated.
- Publication Date: 9.04.2009
- Standard Status: H (İptal Edilmiş Standard/Withdrawn standard)
- Publisher: TSE
- Document Language: en
- ICS Classification: 03.100.40 Araştırma ve Geliştirme ; 03.120.01 Kalite (Genel)
- Pages: 83
- Source Standard: EN 60300-3-4:2008
- International Equivalents: EN 60300-3-4-EQV
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