1. to train new employees needed for the various economic sectors as a result of yearly substitution through old age/sickness, economic growth requiring new employees, and new technologies requiring different kinds of employee; 2. to provide further training and retraining for existing employees, so as to increase productivity and to change or adapt technology or work structures; 3. to train people for self-employment; 4. to a lesser degree, to enable individuals to develop their hobbies, maintain a good health and spirit, become active citizens, and acquire various life skills.