When it comes to smoothing out a burn-down chart, the trick is the break up the tasks in a way that allows for each to be completed in full according to how you

When it comes to smoothing out a burn-down chart, the trick is the break up the tasks in a way that allows for each to be completed in full according to how you work on them. It may go against the logical or functional division of the project but it helps you mark stuff as done. For JIRA in particular, also avoid creating sub-tasks if you're burn-down is tracking at the task level - as you have to complete all subs for the main task to be complete.