“Done” is a simple yet often misinterpreted word. To me, it means finished, finalized, and completed. Being done means that there is nothing left to do. Done is simple to define; however, delivering a done Increment remains one of the fundamental and more elusive requirements of Scrum and agility.

Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems.

what are characteristics of a good story? The acronym "INVEST" can remind you that good stories are: I – Independent; N – Negotiable; V – Valuable; E – Estimable; S – Small; T – Testable.