UNIVERSITY OF HERTFORDSHIRE COMPUTER SCIENCE RESEARCH COLLOQUIUM "The Effects of Graphical and Textual Visualisations in Multi-Representational Debugging Environments" speaker: Dr. Pablo Romero (Human Centred Technology Group, University of Sussex) (joint work with Sallyann Bryant) 10 December 2003 (Wednesday) Lecture Theatre E350 College Lane Campus, Hatfield 3 - 4 pm Coffee/tea and biscuits will be available. Everyone is Welcome to Attend Abstract: The effects of graphical and textual visualisations in a multi-representational debugging environment were investigated in computing students who used a software debugging environment (SDE) that allowed them to view the execution of programs in steps and that provided them with concurrently displayed, adjacent, multiple and linked representations. The experimental results are in agreement with research in the area that suggests that good debugging performance is associated with a balanced use of the available representations. These results also raise the issue of whether graphical visualisations promote a more judicious representation use than textual ones for program debugging in multi-representational environments. Additionally, we present a brief account of a framework to analyse both verbal protocol and user interaction log data on the basis of debugging degree of skill and expertise. -------- Hertfordshire Computer Science Research Colloquium Abstracts On-line: http://homepages.feis.herts.ac.uk/~nehaniv/colloq/