4 Defect Debt
On an Agile project defects are fixed as they are found, so no story should be considered complete if there are outstanding defects with it. But this does not mean that defects do not persist. A defect may be found that is not related to a story in the current iteration, or the customer may decide that the defect on a story is not worth the effort it would take to fix it and would prefer to focus on another ...