Autor/-in: David J. Barnes

David J. Barnes is a Senior Lecturer in Computer Science at the University of Kent, in Canterbury, England, and mainly teaches introductory, object-oriented Programming at both undergraduate and postgraduate levels.

In addition to computing education and his rich, practical experience in a wide range of programming languages, his main research also includes the area of Software Engineering.

Michael Kölling is a Professor in the Department of Informatics at King's College London, UK. He holds a Ph.D. in Computer Science from Sydney University and has worked in Australia, Denmark, and the UK.

He is the lead developer of BlueJ and Greenfoot, two educational programming environments, and his research areas of interest include object-oriented systems, programming languages, software tools, and computing education.