Hierarchy of datamodels

[mcara]

Trying to understand the hierarchy of the data models, I came across this section: https://github.com/spacetelescope/jwst/blob/master/docs/jwst/datamodels/models.rst#hierarchy-of-models which is completely uninformative:

There are different data model classes for different kinds of data.

The rest of the file mostly deals with ImageModels and mentions a couple of other models in passing in the section "Converting from astropy.io.fits".

Could this, please, be improved?

[jdavies-st]

Yes, this needs to be improved. I can tackle it.