1971–1975
study of mathematics at the University of Vienna
1973–1978
study of computer science at the Vienna University of Technology
1978–1989
researcher at the Institute of Information Processing of the Austrian Academy of Sciences
1984–1999
delegate of the Austrian Standardization Organisation and ISO (Intern. Standardisation Org.) in computer graphics
1989–1999
head of the applied department of the Institute of Information Processing of the Austrian Academy of Sciences
1999–2011
senior researcher at the Commission of Scientific Visualization of the Austrian Academy of Sciences
2001–2004
coordinator of an EU-INTAS project
2006–2009
coordinator of the eContentPlus project Bernstein – The Memory of Paper
Since 2012
senior researcher at the Institute of Medieval Research of the Austrian Academy of Sciences
computer graphics, visualization, graph theory, paper and watermark research, digital humanities