Learning Management System (https://en.wikipedia.org/wiki/Learning_management_system).

E-learning providers such as Udemy, Skillshare, Pluralsight or Coursera have their own "embedded" learning management system. But this piece of software can also live alone as some instructors prefer to build their own audience and hence control the distribution (which usually happens through social networks). The advantage over using a marketplace (like Udemy) or selling the content to e-learning providers such as Pluralsight or Linkedin Learning, is that they mainly can sell their courses for much higher prices

Learning management system.

Effectively a platform that runs corporate online training.