A terminal management system (TSM) is needed to perform a variety of tasks associated with proper functioning of a payment terminal. If you opt for an embedded payment terminal solution, you will definitely need a terminal management system. You can try to create it using your own development personnel, license one of the existing terminal management systems, or search for some other options. The common tasks performed by a TMS include updates of terminal parameters, applications installed on the terminal, and advertisement content displayed on its screen when it is not in use.
Find more detailed information on terminal management systems in the respective article on #Paylosophy.