An inventory is a group of controls deemed to mitigate the risks identified within a given business scope. The presence of risks and controls in the Acin inventory is determined by the network i.e. when Acin matches two or more network members with the same control. When network members subscribe to an inventory, their risks and controls are compared to the Acin (network) inventory. This comparison reveals areas of consensus a network member shares with their peers as well as potential missing controls and structural deviations in the way the risks and controls are being maintained. A control will typically fall out of an inventory (subject to a sense check) if only one firm in the network has it.