A system for providing a computer language with which to write rules is provided. The system may include a rules container, a rules classes container and an engine/graph. The rules classes container may provide a code library of rules and unit test from which to inherit. The system may also include a rules GUI that may accept code of a rule in a code field window. The rules GUI may also include a documentation presentation window. The documentation presentation window may include a non-editable, reader-friendly view of the rule. Viewing the documentation window adjacent to the code field window may enable a user to understand the code and edit the code. Each rule may depend from another rule or provide a dependency for another rule. The system may save the rules into the rules container. The engine/graph may create a graph of the rules documentation based on the dependencies.