At finanzkasse.at we offer a complete point-of-sale system, primarily for the Austrian market
The system contains of several components with a clear separation of responsibilities: Configuration application as a central point to add all the configuration and data, Query to perform statistical analysis, Terminal to take orders.
The whole system is following a client-server approach, of course offering multi-terminal support.
A central point of point-of-sale system, especially when targeting the hospitality industry (e.g. restaurants, bars,...), is to connect to supporting devices like coffee machines
dispension units, credit card terminals, waiter locks, barcode scanners, various printers and so on.
Futhermore we integrated (besides our own Orderjames solution) other commonly used mobile terminals.
This also is an ongoing project and is extended and improved continuously.