Principles in this wiki are categorized by evidence or level of acceptance. A principle is marked examined if and only if it has been subject to scientific research showing evidence beyond constructed examples. Note that this state is called “examined” and not “proven” as the examination may have limitations and the principle may still be questioned.

If the scientific examination supports the principle, it may be considered state of the art. Furthermore it may also be state of the practice (accepted).

In order to see which principles are examined, use the backlinks feature of the wiki software.