Self- directed learning

In the last week, i took one course about Performence Improvment in our company's university. By one week study, i found out there is a concept that is about Self-directed learning is very popular in now days.What is self-directed learning? I think it is someone who determine his or her own content,set his or her own objects,and decide how well he or she want to learn the material. As everyone knows, the traditinoal course is sitting in the classroom where the instructor tries to meet everyone's needs and usurally fails. So, the self-directed learning and the traditional training are totally different. The SDL is good for us to develope our personal career such as job-related skills.