The tasks are presented as rows in the visualization and the height of the row illustrates the task size. In Fig. 2 each of the sprint’s tasks were visualized in the diagram. Comments are marked with blue circles. Red color marks the testing time of the issue. Green vertical lines mark the start and the end of the sprint. Red vertical lines mark the date when new software version is transferred from the testing environment to the production environment. Weekends are shown as white vertical lines.