[SystemSafety] SILs and Security Levels

[Littlewood, Bev]

On 26 Apr 2016, at 08:58, Coq, Thierry <Thierry.Coq at dnvgl.com<mailto:Thierry.Coq at dnvgl.com>> wrote:

Oh my, us poor sods using 61508, we have never seen the difference between a required SIL and an achieved SIL....
Please.

Best regards,
Thierry Coq
Mobile +33 06 80 44 57 92
www.dnvgl.com<http://www.dnvgl.com/>
The opinion expressed here is entirely my own!


-----Original Message-----
From: systemsafety [mailto:systemsafety-bounces at lists.techfak.uni-bielefeld.de] On Behalf Of Martyn Thomas
Sent: mardi 26 avril 2016 16:53
To: systemsafety at lists.techfak.uni-bielefeld.de<mailto:systemsafety at lists.techfak.uni-bielefeld.de>
Subject: Re: [SystemSafety] SILs and Security Levels

That seems an excellent starting position for work improving 61508.
There will be many details to be agreed, so when do we start?

Martyn



On 26/04/2016 08:40, Peter Bernard Ladkin wrote:
Ingo Rolle is a member of this list and the Secretary of the German
National Committee responsible for matters concerning IEC 61508 as well as Secretary of the GNC responsible for IEC 62443 matters.
The abnormaldistribuation blog has just published an essay from him on
a suggestion for a refined allocation of SIL.

http://www.abnormaldistribution.org/2016/04/26/sils-the-safety-related
-system-lifecycle-and-security-level-ingo-rolle/





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_______________________________________________

Bev Littlewood
Professor of Software Engineering
Centre for Software Reliability
City University London EC1V 0HB

Phone: +44 (0)20 7040 8420  Fax: +44 (0)20 7040 8585

Email: b.littlewood at csr.city.ac.uk<mailto:b.littlewood at csr.city.ac.uk>

http://www.csr.city.ac.uk/
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