‘Online studies’ or ‘Online and session-based’?

What is the difference between ‘online studies’ and ‘online and session-based’ studies?

Online teaching 

If all teaching and submissions on a programme of study take place digitally, the campus/place of study is given as ‘Online teaching’, such as: 

Online and session-based 

If teaching and submissions on a programme of study mainly take place digitally, but you are also expected to meet on campus for certain sessions, the campus/place of study is given as ‘Online teaching’ in addition to the campus you have to meet at.