The term "Proof of Testing"

[dvaidr]

I have an assembly made up of sub-assemblies, which costs approx £1.5M to build. Reliability Testing is required as specified by the customer, which includes a failure truncated test. This means that the assembly is destroyed in the process, which is obviously very costly.

Some time ago, I came across 'proof of testing' which could be used as a substitute for this type of test. Unfortunately, I have no further information. Is there an accepted methodology which can be used instead on destroying the assembly?

[Norbyzuka]

Highly accelerated life testing (HALT) is an destructive method.

environmental stress screening (ESS) and highly accelerated stress screening (HASS) are non-destructive methods.