Badly written, but above all incomplete Stories are one of the most frequent reasons for the failure of Scrum projects. Read here how to write a good User Story.
Scrum, being representative of the Agile project management method. Why Scrum is not a project management methodology, and is set up in the project not as a project.
What are Story Points, why do they exist and how can thy be calculated? Find all the answers in this article. You will be surprised at what they have to offer!