Hotniar Siringoringo is a professor at Gunadarma University, Jakarta Indonesia. She teaches undergraduate students in the Industrial Engineering and Management Program, postgraduate in the Information System Management program, and in the Economics program. She advises students' thesis of master program in Information System Management and doctoral program in economics. She also taught abroad as visiting professor at the West Pomeranian University of Technology in Szczecin, Poland, and to the Slovak University of Agriculture in Nitra, Slovak. She visited Ecuador as visiting researcher in Ministerio de Telecomunicaciones y Sociedad de la Información, Quito, Ecuador on Prometeo project April-July 2014. She published papers in international journals published by reputed publishers such as Inderscience and Emerald.(f08369ad-43c5-4c49-95c6-1183d098c770)