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3. Missions, functions and failures of a system and its components
3.1 Missions and functions
An operational safety study necessarily involves an exhaustive analysis of the various phases of operation, using precise terms such as the missions and functions performed by an asset. It is particularly important to define the notions of function and mission. These definitions vary widely from one business sector to another, and from one country to another. The missions and functions of an entity derive directly from the definition and specification of its operational requirements:
What are the operational requirements, and how will the entity be used?
Where will the entity be used?
How long will the entity be used?
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Missions, functions and failures of a system and its components
Industrial processes
Bibliography
Software tools
HBM PRENSCIA 20016, ReliaSoft Synthesis Master Suite
https://www.hbmprenscia.com/about
ALD 2017 RAM Commander V8.6, Availability Prediction and Analysis
https://aldservice.com/Reliability-Availability-Prediction-and-Analysis-Software.html
...Websites
INERIS (French National Institute for the Industrial Environment and Risks)
ADEME (French Environment and Energy Management Agency)
CEPR (European Center for Risk Prevention)
...Standards and norms
- Maintenance – Maintenance terminology - NF EN 13306 - 2018
- Value management – Vocabulary – Terms and definitions - NF EN 1325 - 2014
- Value-based management – Functional expression of needs and functional specifications – Requirements for expressing and validating the need to be met in the process of acquiring or obtaining a product - NF EN 16271 - 2013
- Value-based management – Life cycle cost of...
Regulations
Decree no. 2001-1016 of the Labor Code instituting the employer's obligation (article L. 4121-2 modified by law no. 2016-1088 of August 8, 2016 – article 5
Circular of May 10, 2010 summarizing the methodological rules applicable to hazard studies
Article L. 511-1 concerning provisions (amended by order no. 2011-91 of January 20, 2011 – article 6)
Order...
Directory
Organizations – Federations – Associations (non-exhaustive list)
Institut national de l'environnement industriel et des risques (INERIS) : https://www.ineris.fr/fr
Institute for Risk Management (IMDR) : https://www.imdr.eu/
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