Maintenance     Telephone support   ABS offers the possibility to obtain assistance to solve a problem (materially or at software level) in the Point of Sales. In case it concerns a material problem, ABS gets in touch with the company who does the hardware maintenance. This way, the time to solve the problem is made as short as possible. This assistance can be granted immediately to the user (1st level support), or to the assistance foreseen by the group (2e level support). The user who doesn’t understand a function of the system, and wants to receive a correct explanation about this can also use this telephone assistance.   Remote Maintenance   In order to find the cause of an incident as soon as possible, ABS can take over the control of the system from a distance, without the user carrying out operations. This way a fast and exact diagnoses and solution to the problem can be offered. The Point of Sales Master integrates several appliances for assistance, this way the Point of Sales can work in ideal circumstances.   Help   On every moment the user can, both in the pay-desk system and in the management, call a help-function that will explain in clear and simple manner the function with what he must deal. Using the programme in an optimum manner is thereby possible, without having to check the manual at every unusual function.   Manual   A guide describes all possible manipulations of the Point of Sales Master in a systematic manner. This offers the possibility to the clever user to use all possibilities of the programme optimally.