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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。)

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？)

The common goal of Scrum master and products is to create viable products through the use of Scrum best practices. The two roles overlap in some of their skill combinations. Therefore, product owners and Scrum Master should make every effort to work closely in many different areas of the project. (Scrum master和产品的所共同目标是通过使用Scrum最佳实践创建可行的产品。者两个角色在他们有一些技能组合中重叠。因此，产品负责人和Scrum Master应尽一切努力在项目的许多不同领域密切合作。)

Scrum master is the driver of agile development teams. Scrum is a method that allows teams to organize themselves and change quickly based on agile principles. Scrum master manages the process of information exchange. (Scrum master是敏捷开发团队的推动者。Scrum是一种方法，允许团队根据敏捷原则自我组织并快速进行更改。Scrum master管理信息交换的过程。)

The roles in Scrum are clearly defined roles and expectations help individuals accomplish their tasks effectively. In Scrum, there are three roles: product owner, development team and Scrum Master. These are called Scrum teams. (Scrum中的角色是明确定义的角色，期望可以帮助个人有效地完成任务。在Scrum中，有三个角色：产品所有者、开发团队和Scrum管理员。这些被称为Scrum团队。)

For new contacts with Agile, project managers and scrum protagonists may look similar or even the same. But it is important to recognize the differences between the two, the possible overlap of certain tasks, and how they complement each other in large projects. ( 对于刚接触Agile的人来说，项目经理和scrum主角可能看起来相似甚至相同。但重要的是要认识到两者之间的差异，认识到某些任务可能重叠的地方，并认识到它们在大型项目中如何相互补充。)

Roles are key in Agile: The business fable of The Chicken and the Pig explains breakfast: pigs and chickens in the Scrum process. It’s a way to differentiate between roles in the Scrum/Agile world. (角色是敏捷的关键：鸡和猪的商业寓言解释了早餐：在Scrum过程中的猪和鸡。这是一种区分Scrum/Agile世界中角色的方法。)