[Glawen]

Safety critical SW is done by following a strict and thorough process. It always begins with safety experts and systems engineers who will identify and classify the risks and determine what will be done to minimize the risk. The software engineer only comes later to implement the SW, which is only a part of the systems implementation.

Here Boeing misclassified MCAS and gave a lower risk than later identified, leading to a more relaxed development process. I hope that light will be shed on what happened at Boeing, because it looks like an intern did the MCAS.