Originally Posted by
OldnGrounded
No, of course not. And the same applies to all of the rest of the software and hardware -- on every . . . everything.
But, if MCAS failure/inadvertent activation have potentially catastrophic consequences, it should be certified at DAL-A.
All DAL-A assures is that the software does what the software requirements say it should do, not that those requirements are themselves correct or complete. That's a SYSTEMS requirements issue not a software requirements issue - and indeed, can be thought of as applying to non-software aspects of design as well.