http://moodle.org/other/icalt2005.pdf
This paper looks at the ever expanding world of open source course management systems, but adds to the comparison the factors of “adaptability, personalization, extensibility and adaptivity” (this later meaning “automatic adaptation to the individual user�s needs”). The results; Moodle is judged to be the best in terms of its adaptation capabilities, though all of the projects are deemed to be light on end-user adaptivity. – SWL