ISS, The Institute of Systems Science, is a specialist training institute of the National University of Singapore offering professional information technology upgrading, conversion and continuing education and training programmes to managers and IT practitioners and technologists. ISS is a life long learning centre for strategic IT management, software technology, and knowledge engineering. ISS offers postgraduate degree programs, professional development short courses and certification training programs such as the Certified Information Technology Project Manager (CITPM) course. ISS is a leading research center in on-line education. The ISS Virtual Institute offers e-learning courses in IT Security, Object Oriented Analysis & Design and many others.