敏捷项目管理中的项目负责人（Project Owner）是指在敏捷团队中负责项目的业务方面的人员。项目负责人通常是客户、产品经理或业务代表，他们负责定义项目的愿景和目标，并与团队合作确定项目的优先级和需求。

项目负责人在敏捷项目管理中扮演着重要的角色，他们需要与团队紧密合作，确保项目的需求和目标得到满足。他们需要与团队成员沟通，理解他们的能力和限制，并根据项目的进展和变化进行调整和优化。

项目负责人还需要与利益相关者进行沟通和协调，确保项目的目标与业务需求保持一致。他们需要与客户和其他利益相关者合作，收集反馈和意见，并及时作出调整和改进。

总之，项目负责人在敏捷项目管理中起着关键的作用，他们需要具备良好的沟通和协调能力，能够理解和满足客户的需求，并与团队紧密合作，确保项目的成功实施。

In addition to the responsibilities mentioned earlier, the project owner in agile project management also has the following key roles:

1. Defining and prioritizing project requirements: The project owner works closely with the team to define and prioritize the project requirements. They gather input from stakeholders, analyze business needs, and translate them into actionable user stories or tasks for the team.

2. Managing the product backlog: The project owner is responsible for maintaining and managing the product backlog. They continuously prioritize and refine the backlog based on changing business needs, market conditions, and customer feedback. They ensure that the most valuable and high-priority items are at the top of the backlog.

3. Making decisions and providing direction: The project owner makes critical decisions regarding the project scope, features, and priorities. They provide clear direction to the team, ensuring that everyone understands the project goals and objectives. They also make trade-off decisions when there are conflicting requirements or limited resources.

4. Collaborating with the development team: The project owner works closely with the development team throughout the project lifecycle. They participate in sprint planning, daily stand-ups, and sprint reviews to provide guidance, clarify requirements, and address any questions or concerns from the team. They also review and accept the completed work at the end of each sprint.

5. Ensuring customer satisfaction: The project owner acts as the voice of the customer and ensures that the final product meets their expectations. They gather feedback from customers and stakeholders, incorporate it into the project, and make necessary adjustments to deliver a high-quality product that satisfies the customer's needs.

6. Monitoring project progress: The project owner tracks the progress of the project and ensures that it stays on track. They monitor key metrics, such as velocity, burn-down charts, and customer satisfaction, to assess the project's health and make data-driven decisions. They also identify and address any risks or issues that may impact the project's success.

Overall, the project owner plays a crucial role in agile project management by bridging the gap between the business and development teams. They provide vision, direction, and guidance to ensure that the project delivers value to the customer and meets their expectations.