This would be a combined test, with 0 importance, made up of other tests (some of which we already have). Deprecated, original website: https://opensourcedesign.cc/wiki/index.php/Open-O-meter The paper: https://www.sciencedirect.com/science/article/pii/S2212827118312095 In English: https://www.appropedia.org/Open-o-Meter In German: https://de.oho.wiki/wiki/Open-o-Meter