Role in Scrum Team-According to Scrum Guide.

In the context of the Scrum framework, there are three primary roles:
Product Owner: The Product Owner is responsible for defining the goals and priorities of the project, and for ensuring that the team is working on the most important features and requirements.
Scrum Master: The Scrum Master is responsible for ensuring that the Scrum framework is being followed correctly, and for facilitating the team's progress by removing any obstacles or impediments that may be preventing them from reaching their goals.
Developers: The Development Team is responsible for actually building the product or solution that the project is focused on. The team is self-managing and cross-functional, and includes all of the skills and expertise needed to deliver a complete product or feature, such as developers, designers, and testers.
These roles work together in a collaborative, iterative process to deliver value to the customer in the form of a working product or solution.