[Bendingo]

> designed and developed to an engineering standard

Hmmmm. Interesting. Is it legally required to use this standard for these critical softwares?

And are developers legally required to be licensed, in the same way that civil engineers are?

[cjbprime]

Yes, the FAA must certify the plane as airworthy for it to be legally flown, and the FAA does use this standard's criteria.