Back when 'online' usually had an offline component, it made sense to define an 'online course' as, say, 75 percent online (or whatever). And today, it makes no sense at all. "How would anyone possibly determine, with any kind of accuracy, that a course was 79.4% online and 20.6% F2F (face to face)? Six-tenths of a percent shy of 80% and the course is blended rather than online? This distinction is ultimately irrelevant and serves no practical purpose." Personally, I've always felt that if the course requires you to show up somewhere, it isn't online - because really, unless you live in the same city, you won't be showing up, which means the course is as inaccessible to you as it would be if it were 100 percent offline.