Bacher, IvanNamee, Brian MacKelleher, John D.Enrico Bertini and Niklas Elmqvist and Thomas Wischgoll2016-06-092016-06-092016978-3-03868-014-7-https://doi.org/10.2312/eurovisshort.20161168https://diglib.eg.org:443/handle/10This paper presents a study which evaluates the use of a tree visualisation (icicle tree) to encode the hierarchical structure of source code. The tree visualisation was combined with a source code editor in order to function as a compact overview to facilitate the process of comprehending the global structure of a source code document. Results from our study show that providing an overview visualisation led to an increase in accuracy and a decrease in completion time when participants performed counting tasks. However, in locating tasks, the presence of the visualisation led to a decrease in participants' performance.I.3.8 [Computer Graphics]Applications10.2312/eurovisshort.2016116897-101