UML for UNIX
Many computer science educators have no formal training in education. Their work simply gets grounded in the technology. For any teacher or student, it is very hard to find out the sources of difficulty in learning particular concept. According to the Sensory Stimulation theory proposed by Laird (1985), effective learning occurs when the senses are stimulated and by stimulating the visual sense especially, learning can be enhanced. Unified Modeling Language (UML) is a language proposed for visualizing the system.