FlexGanttFX Developer Manual : 4.3 ActivityLink

An activity link can be used to model any kind of dependency between two activities. In project planning applications a link would express a predecessor / successor relationship between two tasks, for example "task A must be finished before task B can begin". In other domains a link might simply express that two or more activities need to be scheduled together and that moving one of them requires all others to be moved, too. The image below shows an example of such a link.
A link can be added to the Gantt chart by calling GanttChart.getLinks().add(myLink);

Attachments:

link.png (image/png)