You will be required to technical specifications. (if possible), or screenshots of the final result.
Be sure to specify the operating system or Multisystem. Wishes for color design. If you are tethered to the hardware, you will need the technical guidance of the device.
When designing a terminal, to specify a list of devices and their models (the cash acceptor, the dispenser of issuance, modem, receipt printer, coin acceptor and so on).
When it comes to the development of ERP systems, it is necessary to specify the number of users where the database will be located (on the local network or the Internet), user interfaces (or job descriptions), the purpose of the system, additional peripheral equipment.
The most detailed story that we want to get in the end result.