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Scrum Masters coaches, coaches, coaches and enables their teams to develop excellent products. This can be a challenging and time-consuming task for new teams in organizations that are also novices to Scrum. Over time, the team improved. Does the Scrum Master role disappear completely and continue to zero? (Scrum Masters教练，指导，指导并使他们的团队能够开发出优秀的产品。对于同时也是Scrum新手的组织中的新团队而言，这可能是一项具有挑战性且耗时的工作。随着时间的推移，团队改善了。Scrum Master 角色是否完全消失一直持续到零？)

Completion (DoD) is defined as a list of requirements that user stories must comply with in order for the team to complete the PBI. The difference between the two is that DoD is universal to all user stories, and acceptance criteria are applicable to specific user stories. The acceptance criteria for each user story will vary according to the requirements of the user story. (完成（DoD）的定义 是用户故事必须遵守的要求列表，以便团队完成调用。这两者之间的区别在于，DoD对于所有用户故事都是通用的，而接受标准适用于特定的用户故事。每个用户故事的接受标准将根据该用户故事的要求而有所不同。)

The product owner can work with the team to define an artifact called Definition of Ready to ensure that at the top of the backlog projects are ready to move to sprint so that the development team can confidently submit and complete them. The end of the sprint. (产品所有者可以与团队一起定义一个名为“ Definition of Ready的定义”的工件，以确保积压顶部的项目已准备好移动到sprint中，以便开发团队可以在冲刺的结束之前自信地提交并完成它们。)

Product Backlog is the only source ranking list of all products you need and changes in product requirements. The owner of the product is responsible for content, usability, and prioritizes the backlog product backlog to-do list. (产品Backlog是所有你所需要的产品以及产品需求变化的唯一来源排序列表。该产品拥有者是负责内容，可用性，并要求产品Backlog产品待办事项列表的优先级。)

Sprint Backlog is a set of product backlog projects selected for the current Sprint and a plan to provide product increments for achieving Sprint goals. (Sprint Backlog是为当前Sprint选择的一组产品Backlog项目，以及为实现Sprint目标而提供产品增量的计划。)