SIL specification: only SIL of requirement is inherited to subcomponents
I do not know if it is a bug or a new feature, but the SIL level is only inherited from the safety requirement, not from the parent component.
If I habe component A and subsomponent B, I thought, that if I set the intended SIL of A to 3, this is propagated to the subcomponents. But it is not.
(from redmine: issue id 1215, created on 2013-01-25, closed on 2013-03-18)