On 5 June, 2014, Rainer E. Zimmermann was invited to give a special talk in the Lunchtime Scientific Series, organised by the HCI Group of the Institute for Design and Assessment of Technology at the Vienna University of Technology.
The talk gave a broad overview of philosophical considerations that are implied by system definitions.
The definition of a system as introduced by Zimmermann (photo: Wolfgang Hofkirchner)
Please find the abstract here.