Changes

It's important to understand that while making changes to the ECU, there's literally hundreds of different tables that may be referenced at any given time or situation. The process of identifying what tables should be used to achieve a given result includes reverse engineering the process that the ECU uses to make certain decisions. One example of this fact is that while anybody familiar with tuning this ECU knows (by know) about the Max clutch torque tables, they probably don't realize that there's more than than one (15?). These tables are (likely) used in different situations/combustions modes (as outlined by ECUTek). Some tools will link all of them together as a single abstract table so that they all get updated simultaneously, since that's probably the goal of the tuner anyway. If we ever have access to open source tools (technically we do already) for modifying our calibrations, that linking is highly unlikely (and will complicate the tuning process greatly).

Definitions files are essentially a "map" to where the maps are located within the calibration data. They give software the ability to display maps in a human readable way. They're proprietary (in the case of factory definitions files), or they're built by hand using the factory definitions as a model.