I deliver software for enterprise and there is no such thing. I even develop software for medical appliances that have an extended software validation process.

I deliver software for enterprise and there is no such thing. I even develop software for medical appliances that have an extended software validation process. It is about minimizing risk and it is a process that acknowledges that risk cannot be removed completely. It just forces you to work carefully and eliminates neglectful practices. No serious developer will ever commit to ship software free of bugs. On the contrary, that would give people false security, which can in turn lead to further neglect.