What specific role does a project manager introduce in an Agile framework to focus on product improvement?

In an Agile framework, the role that specifically focuses on product improvement is the product owner. The product owner is responsible for defining the vision of the product and ensuring that the development team delivers value to the business and its customers. This role involves prioritizing the product backlog, which contains the necessary features and improvements, based on customer feedback and market needs.

The product owner collaborates closely with stakeholders and the development team to gather input and understand the requirements, ultimately steering the direction of the product. As a result, the product owner plays a crucial role in continuously refining the product and facilitating iterative improvements throughout the project lifecycle. Through their emphasis on customer needs and feedback, the product owner ensures that the end product aligns with the users' expectations and market demands, making it a key role for product success in Agile methodologies.