The educational system in Croatia begins with preschools-kindergartens. Children start their compulsory eight year long primary education from the age of 6 or 7. After finishing elementary school, students can continue their education, based on grades in elementary school, in four year non-compulsory secondary schools that are divided by the curriculum into "gymnasiums", "vocational" (technical, industrial, trade) and "art" (music, dance, art) "schools". Since 2010, enrollment in higher educational institutions is determined by a student's scores on the Matura high-school exit exam. Institutions of higher education offer both university and professional studies. Higher education institutions are divided into polytechnics, colleges, faculties and academies of art. Since 2005, all study programs are aligned with the requirements of the Bologna Process. Five-year university programs enable students to work in science, education, business, the public sector, etc., and can be at undergraduate (BA), graduate (MA) or postgraduate (PhD) level. Professional studies last two to three years, and are offered at polytechnics and colleges. Upon completion, graduates get the title of professional bachelor (bacc).