CDL (Configuration Definition Language) is a language that allows programmers define the structure of configuration file, its format, interdependents and limitations among parameters in human-readable view, and gives easy-to-use API to manipulate it.

Project have three main purposes:
1. Easy-to-use API for programmers;
2. Human-readable format of files for users;
3. Easy language for definitions of configuration rules, and simple check possibility of them.