In any ATM network, which belongs to a Financial Institution, performs three clearly well-defined business processes, identified as follow: pre-operation, “system” operation, and post-operation.
The pre-operation process occurs prior to the operation and is intended to prepare the system as each ATM (device is in service, enough cash, avoid and fix malfunction hardware parts, etc.), in order to grant a good service and/or high uptime to the customer who wants to perform electronica financial operations.
The “system” operation allows to customer to perform withdrawals and the other financial operations offered by the financial institution at the ATMs connected to the switch.
Sometimes, failures occurs during the system operation and the main function of the switch is reponse to each cause, but any failures cannot be managed by the system, for example, if a cash dispenser failure occurs, it is possible that customer account balance could be diminished. In that case, this failure must be detected and reported in order to restore the right balance to the customer account. For this reason, the post-operation business process takes place.
The post-operation process occurs after the system operation that allows transactions in each ATM and the system is cutoff. One has to collect all sources of information, generally paper-printed give to the staff personnel charged to perform these tasks, in order to find out inconsistencies and restore the whole system state.
One has to produce an position report for each ATM, but sometimes, information is not available at once. The worse case is when a customer presents a complaint a lot of time after and the supporting information is not available.