A FIX Dialect represents a customized dictionary of a single FIX messaging specification (or put simply, a FIX variant version). OnixS FIX Engines support dialect descriptions as part of its configuration settings.
A FIX Dialect will vary in scope dependent on the target venue specifics. But generally, they include a FIX Dialect that has been created by OnixS based on the "FIX Rules of Engagement" specification published by the specific venues. The process of creation, usage and maintenance of FIX Dialects is documented in the respective OnixS FIX Engine Programming Guide for .NET / C#, C++ and Java platforms.
It is also worth noting that the OnixS FIX Engine standard distribution packages include a range of reference implementation samples and documentation for benchmarking, dealing with custom repeating groups, client application code samples, pluggable storage persistence, FAST Encoding/Decoding etc. So the FIX Dialect packages are designed to provide useful extensions to these base distributions.
To request an evaluation, simply register to download and indicate your specific venue of interest. We will then provide the specific package(s) and associated FIX Dialect implementation.