It is possible for the status of a visit to change to “in operation” well after the loading/discharging activities of that visit have begun or ended. The underlying signal for the status change in HCN Barge is the first gate-in/gate-out notification the terminal sends to Portbase for the barge visit in question. When the gate-in/gate-out confirmation is sent or processed at a later time, it gives a skewed impression of the actual operation’s progress.