As far as I can tell, Ethicon, which is an 80-year old division of Johnson and Johnson, is the first company to offer a MOOC for surgeons and others involved in obesity management. The MOOC is the brain child of Tim Mauri, Marketing Manager at Ethicon who is a self described "online learning enthusiast".
The edX platform consists of two primary user interfaces: the LMS and Studio. The LMS is what students use to interact with the course material, the instructor and each other. It is the part of the edX platform that most people are familiar with.