Before Beacons can be easily integrated with identity cards to authenticate access at the entrances of certain sections and offices of a hospital. This means that managers and administrators can grant or restrict access on an individual-basis. After Beacons can be easily integrated with identity cards to authenticate access at the entrances of certain sections and offices of a hospital. Authenticating access means that managers and administrators can grant or restrict access on an individual basis. Notes. 'This' is an unclear antecedent. We need to clarify what 'This' refers to. Please avoid starting sentences with 'this'. Changed 'individual-basis' to 'individual basis' as the hyphen is not required there.