[SystemSafety] Collected stopgap measures

[Andy Ashworth]

I think part of the problem is that we focus on specific engineering disciplines and neglect system integration. Safety is a system property, but we educate at a sub-system/component level. We can teach the need for risk assessment but we are not teaching it in the context in which it needs to be applied.

We need improvements in how we introduce system engineering and the need for engineering rigour to be applied at this level as well as at the detailed engineering stages too.

Best regards

Andy

Sent from my iPhone

> On Nov 2, 2018, at 08:38, paul_e.bennett at topmail.co.uk wrote:
> 
>> On 02/11/2018 at 11:25 AM, "Peter Bernard Ladkin" <ladkin at causalis.com> wrote:
>> 
>> Some points concerning safety and SW.
> 
> [%X]
> 
>> A risk analysis must be performed (hazard identification, hazard 
>> analysis - basically the
>> assignation of a severity to each hazard, and some estimate of 
>> likelihood, then risk assessment, the
>> combination of likelihood with severity). "Society" sets the 
>> acceptable risk, per hazard.
> 
> I think all of us on this list appreciate the need for the risk assessment
> to be performed. However, there is a class of system out there where
> such risk assessment has not been performed and because the
> developers had not performed the risk assessment, they unkowingly
> release a system into the wild that somehow causes harm.
> 
> How many normal courses in engineering routinely direct the participants
> to the idea that a risk assessment should be performed regardless of
> whether or not someone thinks the system may become safety related
> or is benign.
> 
> There is a big wide world of people out there that have no clue of this and
> we need to have a mechanism by which we educate the rest. Knowing that
> we will likely fail in that regard for any but a small proportion. To this dilema,
> I have no answer except that I try through my efforts in schools as a STEM
> Ambassador, to introduce the concept of risk assessment for the young.
> 
> Regards
> 
> Paul E. Bennett IEng MIET
> Systems Engineer
> Lunar Mission One Ambassador
> -- 
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