RightCrowd Presence Control Core is a lightweight software appliance that orchestrates activations, deactivations and presence control monitoring of security wearables. RightCrowd Presence Control Core receives events or pulls access rights from the PACS. Based on those, RightCrowd Presence Control Core activates or deactivates wearables using RightCrowd Gateways. It is also the conduit for the RightCrowd App and allows configuration of the RightCrowd Wearables and RightCrowd Gateways through an embedded web application.