Aslan completed his studies in 1988 as a social worker at the University of Applied Sciences in Esslingen. From 1990 to 1992 he studied pedagogy and political science at the Universities of Tübingen and Stuttgart. He received his doctorate in 1996, which looked at the religious education of Muslim children in Austria and Germany. This was followed by various teaching appointments, and since 2005 Aslan has been a specialist inspector for Islamic religious education at the compulsory schools in Vienna. Since 2008, Aslan has been Professor of Islamic Religious Education at the Institute of Educational Science of the University of Vienna, His research interests include Islam in Europe, the theory of Islamic education in Europe, and Muslim immigrant children in public schools.