less than 4 weeks long. • After completing the sprint, everything must be ready to go into production. • A Scrum team must have a Product Owner and know who that person is. • The Product Owner must have a Product Backlog, with estimates and assumptions created by the team. • There must be no one outside a team interfering with the team during a sprint: ◦ No allowed to work on other projects unless is planned. ◦ All the team must be working focused on features defined in the current sprint, any deviation is unacceptable unless is necessary to complete the features in the current sprint. • Daily scrum meetings are daily, means every day, same location, same hour. Rules