Scrum Roles
This is usually 3-9 people is size.
What is a Development Team?
This is the person ultimately responsible for the product. He/She sets the vision and prioritizes the backlog.
Who is the Product Owner?
The 2002 Standish Group study reported that 20% of features are used "often" or "always." This is a key reason why Agile projects focus on this.
What is Business Value?
These are the people who enable the project and for whom the project will produce the agreed-upon benefit(s).
Who are the Stakeholders?