What is the relationship between user stories, tasks, and epics?

Avoid using examples that are not simple or relatable. Some epics are unique to certain lines of business and may confuse the interviewer. For example, do not provide an example epic that is an acronym for a warehousing inventory control function to an interviewer who specializes in HR technology solutions.

Tasks are items that are needed to complete a user story. A user story may require one or more tasks. User stories represent a goal or ability that is needed from the perspective of the user. Epics are a series of user stories that represent a large body of work that holds user value.

For example, a customer may request that their website have a shopping cart functionality. 'Shopping Cart' becomes the title of an epic because it cannot be completed with a single story and requires a significant amount of work. From there, the epic would be broken down into a series of user stories, such as 'as a customer of XYZ website, I need the ability to change the quantity of an item in my cart so that I can buy the right amount of a product.' That story would then have tasks like 'add product increment tool' and 'add product delete button.'