[SystemSafety] Software reliability (or whatever you would prefer to call it)

[Peter Bernard Ladkin]

On 2015-03-06 11:37 , Nick Tudor wrote:
> The beta testing does not find any errors....according to your example, it must be 100% reliable.

We may not conclude, by anyone's reasoning, that the software is 100% reliable. We may conclude that
the software is 100% reliable *to some level of confidence*, or 90% reliable *to some higher level
of confidence*. All being subject to whatever "X% reliable" means - Martyn did not use that term to
describe his example, and neither would I.

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