The front-end application is a software program for financial traders that interfaces directly between the user and the market  and is the part of a website or software application that is seen and used by consumers. In other words, the back-end application is the creation and programming of a website or software application, while the front-end application is the finished product that the consumer uses and sees after the back-end integration process. The trading software is usually installed on the user's PC and connects directly to a markets local network intranet or via the internet.  It is that part of the software that the end user sees and interfaces with directly or onscreen.