[SystemSafety] Component Reliability and System Safety

SPRIGGS, John J John.SPRIGGS at nats.co.uk
Fri Sep 14 16:32:10 CEST 2018


In my bit of the industry, there is much less obligation to use specific standards than there is in some others.  If I were using a standard, or following guidance, and wish to use evidence of the activities to support a safety claim, I would also need to justify why use of that standard or guidance is appropriate in the context.

So, if you think MISRA C is relevant, and you are using it to support assurance claims, justify this use to your assurees.  If you do not think it relevant, do not use it.


John

-----Original Message-----
From: systemsafety [mailto:systemsafety-bounces at lists.techfak.uni-bielefeld.de] On Behalf Of Derek M Jones
Sent: 14 September 2018 15:16
To: systemsafety at lists.techfak.uni-bielefeld.de
Subject: Re: [SystemSafety] Component Reliability and System Safety

Paul,

>>>> [Paul Sherwood, I think] Why is MISRA C still considered relevant 
>>>> to system safety in 2018?
>>
>> (Banal question? Banal answer!)
> 
> I'm sorry you consider my question banal. I mentioned your comment to 
> an

I would have said it was a blinkered question.

There is no one solution to building safe systems.  Lots of things have to be done.

-- 
Derek M. Jones           Software analysis
tel: +44 (0)1252 520667  blog:shape-of-code.coding-guidelines.com
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