One of the best explanations of GRC I’ve came across is from Michael Rasmussen, VP of GRC research from Forrester. Most poeple try to explain GRC in separate components, G, R, C. Michael explains it in a more cohesive way and a good analogy: a three legged stool
’The purpose of GRC is to provide sustainability, consistency, efficiency, and transparency for the multiple GRC processes in the organization. This is achieved by encouraging collaboration among the roles responsible for GRC (e.g., corporate secretary, corporate compliance, enterprise risk, audit, IT, line-of-business, investigations, legal) as well as leveraging a common framework and technology infrastructure.’