: 1018http://astraiosdb.utwente.nl/data/course/ Create a prefix for http://astraiosdb.utwente.nl/data/course/ Hit Enter to save Double click to create a prefix | : descriptionhttp://gch.utwente.nl/ontology# Create a prefix for http://gch.utwente.nl/ontology# Hit Enter to save Double click to create a prefix | Requirements Definition, Softw ...... s and Maintenance, and Quality |