Use it if you wish to credit the original source or sources of your course materials. Most online courses will be Ordered even though they may have many hyperlinks. This is the default. You can change it, if your course is structured differently. Or, if your course also has other features, then you can add them.
Linear structure is also most common.
Hyperdimensional should only be used as the top listing if there is no linearity or inherent order in the course materials. MOOs and MUDs would be Parceled . Subject Pick the category that applies. This is the main field for identifying your course. Avoid including the course code.