I agree - I think the reason they took it aside and investigated the root cause was that they couldn&#x27;t afford to produce very many defective parts at £7,000 apiece, whereas in software each defective instance is (nearly) free.<p>That said, I&#x27;ve worked in teams who were developing software that would be boxed, shipped, and installed on millions of remote devices, and I&#x27;ve worked on teams whose main focus was &quot;keep the service running at all costs&quot;.  The former definitely emphasized root cause analysis, because screw-ups were insanely expensive and difficult to fix once they were shipped.  The latter - not so much.