JIRA ticket #1 with an original time estimate of 16 hours is scheduled for a user on Monday and Tuesday. Suddenly the ticket of higher priority ((JIRA ticket #2) is assigned to a user to work on Tuesday, and he/she cannot continue on Ticket #1 and will be able to finish only on Wednesday.
Ticket #1 will have to be split into Monday and Wednesday. This can be done by dragging and dropping the task by keeping the Shiftkey pressed.
As a result, the system creates two issue parts – the first one for Monday and the second one for Wednesday.
The estimate will also be split (16 hours of remaining time = 8 hours on Monday and 8 hours on Wednesday):
Manage Estimated Time
One can manage how many hours are going to be put in each part of the ticket in Manage Issue Parts:
Click on any of the parts to update or manage them
Press the Manage Issue Parts button
Change the number of hours for each part and click Update.
→ The system will update the remaining time estimate for each part and will also update the total amount of remaining hours of JIRA tickets.
One can delete the issue part by clicking on the Delete link.
Splitting the tickets works not only with one person but also across multiple people and dashboards.