There is hardly any developer working for petrol stations not already familiar with DOMS. DOMS (PSS 5000) is the most popular forecourt controller in the market. Forecourt controller is a hardware device that automates petrol station. It can connect and control almost any device found on forecourts nowadays. EmuPSS, the product described here is an only existing pure software emulator of DOMS controller running on a petrol station.
PSS 5000 uses proprietary TCP/IP protocol to connect with POS clients. For that connection you need interface components supplied by DOMS to its distributors. Component is a standard OCX component.
The main problem developers face working for petrol station is testing. Testing on the site is not the best option. It disrupts the usual operation of the forecourt and often puts station out of order.
Software is written for .NET framework. All the most important functions of one petrol station exist in an emulator. On the screen emulator form is on top of the Demo Pos (supplied by Doms and used for testing its hardware). For a full manual check documentation PDF file available id download section.