On Tuesday, 5 November 2013 at 08:41:17 UTC, eles wrote:
On Saturday, 2 November 2013 at 04:03:46 UTC, Walter Bright
wrote:
On 11/1/2013 8:03 AM, bearophile wrote:
I think you're missing the point. Improving the quality of the
software is not the answer to making fail safe systems.
Well, OTOH, worsening the software won't really increase the
reliability of the system.
Fail safe design needs to be engineered to handle the situation
when any component fails regardless of the quality of components
used. Software is just one more (weak) component in the system.
Of course component quality is important to overall safety
because fail safe systems are not foolproof. But as Walter says
it should not be part of the solution nor relied upon in a fail
safe deign.
