a computer - implemented method for determining a zone of relevance for locating a wireless end - user and making a user notification decision including : storing information related to the enterprise in an enterprise database ; storing information related to the end - user in an end - user database ; accessing said enterprise and user end databases to extract enterprise and end - user related information ; accessing a geographical database to extract geographic information , based on information obtained from the enterprise database ; extracting relevant dynamic inputs from external sources via a predefined application programming interface ; determining a value for the user notification based on weighting of said extracted information and historical use information ; determining a zone of relevance for the wireless end - user ; and notifying a user , wherein notifying the user meets predetermined criteria for the determined value of notification .