Fast schema is the representation of the Fast template definition in QWFIX system.
The Fast template is very well defined in the FAst specification documentation from http://fixprotocol.org. The QWFIX Fast schema is just a simple wrapper of the standard fast templates with some extra information, such as internal version and associated FIX schema information.
Fast schemas are managed by the QWFIX Enterprise Manager GUI tool. User can create a new Fast schema either standalone or from an existing FIX schema. User can also create Fast schemas by importing existing Fast templates definition in Xml format.
QWFIX EnterpriseManager provides a visualized Fast schema editor that helps users to edit the fast templates visually.
The Fast schemas can be exported into Xml format of template definition files so that the Fast templates can be used by other fast enabled systems to maintain interoperability.
In QWFIX, Fast schema is defined in FastSchema class.