Training Provider vs. Training Supplier

Summary:

What are the different uses for the Training Provider field and the Training Supplier field?

Content (required):

New to the system and trying to get answers from the published documentation, but I haven't been able to find a simple answer to this question. What is the difference between a Training Provider and a Training Supplier? Is a supplier meant to be an external company providing training with provider being an internal group within your organization? What role do these fields play elsewhere? Do they control access in any way? Or are they merely there for reporting purposes? Thank you!