The International Baccalaureate (IB) Diploma Programme (DP) is a rigorous pre-university course of studies, leading to external examinations that meet the needs of highly motivated secondary school students between the ages of 16 and 19. Designed as a comprehensive two-year curriculum that allows its graduates to fulfil requirements of various national education systems, the DP model is based on the pattern of no single country, but incorporates the best elements of many.