The System page, is where a new system is started, and where you can display a summary of all Classes within each System.

You can have one or more systems, and each system can contain one or more Classes. There are no hard and fast rules as to what Classes should belong within what systems. There are also no restrictions on systems communicating with each other. Systems are primarily intended to allow developers to collect Classes together in a manner that makes finding appropriate classes easy.

In the example below, system 'TEST' contains three classes - POSTCODE, STATE and TEST (1). You can go directly to the Class page, by selecting the View link (2) located to the left of that Class. This is a standard navigation technique within Freedombase.