So, the tracks are only related to sprints? Or do you want to preserve that information from sprint to sprint? If you consider a sprint to be a conference, then a "track" is a common terminology for a group of related presentations / topics / bofs.
So, the tracks are only related to sprints? Or do you want to preserve that information from sprint to sprint? If you consider a sprint to be a conference, then a "track" is a common terminology for a group of related presentations / topics / bofs.