Re: [SystemSafety] Does "reliable" mean "safe" and or "secure" or neither?

From: Peter Bishop < >
Date: Thu, 21 Apr 2016 08:27:01 +0100


Security is more usually defined as:
Integrity + Confidentiality + Availability

Peter Bishop

On 20/04/2016 15:23, RICQUE Bertrand (SAGEM DEFENSE SECURITE) wrote:
> I would stick to the Laprie taxonomy :
>
> Dependability = Availability + Reliability + Safety + Integrity(not the SIL one, the true one) + Maintainability
> Security = Integrity + Confidentiality
>
> Bertrand Ricque
> Program Manager
> Optronics and Defence Division
> Sights Program
> Mob : +33 6 87 47 84 64
> Tel : +33 1 58 11 96 82
> Bertrand.ricque_at_xxxxxx >
> -----Original Message-----
> From: systemsafety [mailto:systemsafety-bounces_at_xxxxxx > Sent: Monday, April 18, 2016 8:21 PM
> To: systemsafety_at_xxxxxx > Subject: Re: [SystemSafety] Does "reliable" mean "safe" and or "secure" or neither?
>
> On 2016-04-18 18:25 , Chris Hills wrote:

>> What is the current thinking?   Does "reliable" also infer safe or secure? 

>
> The system consists of the following.
>
> You, tied up in a chair, fixed to the floor. Along with your nemesis, with a rifle, who is pointing it at you, and is an excellent shot, and intends to shoot. Heshe pulls the trigger.
>
> If the rifle is reliable, the system is unsafe.
>
> If the rifle is completely unreliable, the system is safe.
>
> PBL
> Prof. Peter Bernard Ladkin, Faculty of Technology, University of Bielefeld, 33594 Bielefeld, Germany Je suis Charlie
> Tel+msg +49 (0)521 880 7319 www.rvs.uni-bielefeld.de
>
>
>
>
>
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Peter Bishop
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Received on Thu Apr 21 2016 - 09:27:14 CEST

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