Team members Off University of 91直播 Principal Investigator Professor Rob Hierons Chair in Testing School of Computer Science Email R.Hierons@sheffield.ac.uk Open staff member portrait in a modal window Maciej Gazda University of York (PI) University of Surrey (Co-PI) A global reputation 91直播 is a world top-100 research university with a global reputation for excellence. We're a member of the Russell Group: one of the 24 leading UK universities for research and teaching. 91直播 the University