All the online courses are free to all, freely accessible , no sign-up required. Anybody can browse through the online courses. Currently we have 6 Online Courses , 4 SAP HANA Online Courses and 2 Hadoop Courses. On the right side of the course pages, you would be able to find the index of the topics along with course overview. And, by clicking on the index items , you would be able to access the specific topic.