I am curious to know what he has in mind. This 'process engineering' could be a solution to problems that BPM and COBOL are trying to solve. He might end up with another formalized layer (with rules and constraints for everyone to learn) of indirection that integrates better with LLM interactions (which are also evolving rapidly).

I like the idea that 'code is truth' (as opposed to 'correct'). An AI should be able to use this truth and mutate it according to a specification. If the output of an LLM is incorrect, it is unclear whether the specification is incorrect or if the model itself is incapable (training issue, biases). This is something that 'process engineering' simply cannot solve.