Yes it still harmful because it is air pollution to your lungs. My kid's pediatrician used to tell me that I should change my clothes after smoking a cigarette and before I carry my baby.
In Scrum, a product backlog item (PBI, backlog item, or item) is a unit of work small enough to be completed by a team in one Sprint iteration. Backlog items are decomposed into one or more tasks. See also backlog effort estimation unit.
A skilled Scrum Master can help the team identify thin vertical slices of work that still have business value, while promoting a rigorous definition of âdoneâ that includes proper testing and refactoring. It is common to write Product Backlog Items in User Story form. In this approach, oversized PBIs are called epics.