Even though the words are deemed to be closely associated, the difference between automation and autonomy is very distinct. Automation is about executing a pre-defined task ( a process performed without human assistance) . Autonomy is about mimicking the way humans use judgment in an uncertain environment. This implies “satisfactory performance under significant uncertainties in the environment and the ability to compensate for system failures without external intervention How is this marked difference given reality in Oil and Gas Sector – Yokagawa explain further