project management

John works at Company X as the Director of IT. He has recently authorized the start of a new project to replace an ageing server with a new model. What is the Project Management term for John’s role within the project? Describe the key aspects of the role in your own words.
Vijay is responsible for overseeing a group of related projects within an organization. What is the Project Management term for Vijay’s job description? Describe the key aspects of the job description in your own words.