1. A method, for a monitoring device to monitor member activities originated by a member, comprising the steps of: monitoring, through a monitoring port, member activities; upon detecting an activity, updating with the detected activity individual variables and collective variables stored in a storage unit, each member being associated with a plurality of individual variables and each collective variable being defined as a function of a plurality of individual variables; comparing, by the controller, the updated individual variables and the collective variables against respective associated threshold conditions; if any of the updated individual variables and the collective variables exceeds a respective associated threshold condition, issuing an alert event, through an user interface, to notify designated personnel; upon receiving an alert event, deciding by the designated personnel whether to manually redefine the associated threshold condition or to ignore the alert event; and if the alert event is ignored, redefining automatically by the controller the associated threshold condition.