They all have methodologies. The pilot's checklist that was already mentioned is just one. For doctors you have different paths of treatment that can be standar

They all have methodologies. The pilot's checklist that was already mentioned is just one. For doctors you have different paths of treatment that can be standardized for years, then undergo major changes when new information is discovered. With lawyers it depends on what they do. New approaches to cases, new discovery methods, everything is a process and everything can be improved. Software development attracts these things because software development isn't as firmly entrenched in tradition as doctors or lawyers are. There are way more people that are open to implementing ways of accomplishing tasks that are more open and efficient than there ever could be in most other realms.