OpenCourseWare (OCW) refers to the free and open digital publication of high quality college and university‐level educational materials. These materials are organized as courses, and often include course planning materials and evaluation tools as well as thematic content. OpenCourseWare are free and openly licensed, accessible to anyone, anytime via the internet (Source).
OCW is a subset of OER. OCW focuses on educational materials associated with a particular course at a given institution, and may include video lectures, readings, assessments, images, and more.
MIT OCW, which launched in 2001, is a prominent example of an institutional OCW initiative.
Open CourseWare, OCW, OER, Open Educational Resources, courses, MIT OCW