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4. Taking the human factor into account
In many cases, IT techniques do not offer sufficiently reliable or inexpensive means of preventing certain failure modes from producing the feared events. In such cases, the safety barriers employed call on the operator, putting man back into the safety loop.
However, the human factor also has its failures, and it's important to be able to analyze and even quantify them, to ensure that they really do contribute to the desired improvement in reliability. FOH risk analysis (Organizational and Human Factor) must therefore complement software risk analysis to validate system reliability.
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Taking the human factor into account
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Bibliography
Websites
IMdR – Institute for Risk Management
AFIS – French System Engineering Association
AFNOR – Association française de normalisation
...Standards and norms
- Railway applications: signalling, telecommunication and processing systems – software for rail control and protection systems - EN 50128-11 -
- Sécurité fonctionnelle des systèmes électriques/électroniques/électroniques programmables relatifs à la sécurité - CEI 61508-10 -
- Software considerations in airborne systems and equipment certification (Considérations sur le logiciel en vue de la certification...
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