Several utility classes are used by the expert system. Through their use it is possible to communicate with the external world, like database, user, other software, as well as to simulate data evaluation-acquisition process, etc.
The utility classes use the multiplatform class library wxWindows for providing strings, lists, GUI elements for the demos, etc. In the Reference Manual, you find the In the names below, "xp" and "xr" are prepended to the corresponding function and rule names, standing for "eXPert" and "eXpert Rule", respectively.
Refers to Carbon contamination rules.