[SystemSafety] A small taste of what we're up against

[paul cleary]

Sorry I have not seen the example

Kind Regards
Paul Cleary

Sent from my iPhone

On 26 Oct BE 2561, at 15:40, Nick Tudor <njt at tudorassoc.com<mailto:njt at tudorassoc.com>> wrote:

An example was asked for and given; So is this ALARP or isn’t it? I would like to know as I’m sat on the tarmac about to start engines....now going to flight safe mode.

On Fri, 26 Oct 2018 at 11:12, Martyn Thomas <martyn at thomas-associates.co.uk<mailto:martyn at thomas-associates.co.uk>> wrote:

Dewi

The avionics industry is a very special case because (a) manufacturers have an existential stake in avoiding hull losses and (b) every hull loss is examined in great detail to identify contributory factors, (c) there is great investment in architectural resilience against the failure of individual systems and components.

The economic incentives to conform to standards and to go far beyond them are very strong in avionics, which is perhaps one reason why the take-up of rigorous software engineering has been stronger there than in most other areas of software development.

It's hard to eliminate these considerations when trying to draw more widely applicable conclusions from the achievements in this sector.

Martyn

On 26/10/2018 09:14, Dewi Daniels wrote:

There are over 25,000 certified jet airliners in service world-wide, many containing software written in C. There has not been a single hull-loss accident in passenger service ascribed to a software fault.

Yours,

Dewi Daniels | Director | Software Safety Limited

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