Wayne Mackintosh wrote,
When you say cluster (overlapping) -- are you referring to different designations or specialisations streams within the credential?
Yes – the idea is that the initial OER/courses could focus on such areas as nursing and education or business with several of the OER/courses possibly common to all three or at least two of such areas while also allowing for an Arts diploma. Quite a few lower level courses that are useful (core or elective) for regulated professions are generic. International credentialing services provided by various higher education jurisdictions could be consulted to see which courses are broadly accepted internationally for starters. I realize this approach aligns more with the existing system of higher education than some would advocate, but it makes sense to me to start with as many knowns as possible and move forward from there. This approach also does not preclude building new and unique credentials from the same OER/course pool.