FIX Schema editor manages FIX schemas (also called "FIX dictionary"). User can customize their own FIX schema by adding, deleting or modifying FIX fields or message fields of existing schema.
Constants in FIX schema (tag names, valid value names and message type names) can be compiled into dll so that developers can use names to reference constants in FIX schema.
Figure 1: Schema Editor in QWFIX Enterprise Manager
Figure 2: Schema Editor Adding a New Field
Figure 3: Schema Editor Compiled Dll in Visual Studio .Net
