OpenCourseWare (OCW) can be summarized as:
1) OCW refers to open digital educational materials from universities, including course planning materials, content, and evaluation tools, that are freely accessible online to anyone.
2) "Open" means the materials are free to access, use, and share without fees or access barriers. They can be reused, redistributed, revised, and remixed.
3) OCW aims to provide high quality educational resources that are organized as courses and cover a range of topics, acting as a supplement to formal higher education.