Online learning is a way of studying for an internationally recognized qualification without needing to attend classes on campus. All your materials are given online as well as tutorials. It is aimed at those who wish to study for an undergraduate or postgraduate qualification alongside work or other commitments.
Open Distance Learning (ODL) is a different way of learning. ODL is a different way of learning because there is a physical distance between you and your university. This means that you may have all the materials online but you may also go through classes if you wish to. And the most important is that you will need to go to the campus for examinations. This is compulsory to validate your semesters.