Quantifying the evolution of TTCN-3 as a language

Developer-Centric Software Assessment

“…• identifying hotspots of frequently changed pieces of code by means of hot-spot analysis [102,115],…”

“…To illustrate the relevant notions, consider the line change map shown in Figure 3.1. A line change map [115] is a visual representation of the changes to the lines of a file across revisions as reflected by the diffs stored in the VCS. The lines of a file are plotted on the vertical axis, indicating the corresponding line numbers, against the subsequent revisions of the file plotted on the horizontal axis.…”

“…There are different kinds of churn measures described in the literature [90,91,115,127]. We consider a rather simple absolute measure of churn defined as the sum of additions and removals in terms of lines (Churned LOC in [127]), where a modification is considered both a removal and an addition of one or more lines that are part of the modification.…”