Differences between roles and functions
Roles and functions are two different concepts in project planning management. A role is a set of expectations and responsibilities assigned to a person or group of people. It is a broad definition of the tasks and activities that a person or group is expected to perform. A function is a specific task or activity that is part of a role. It is a more specific definition of the tasks and activities that a person or group is expected to perform.
For example, a project manager's role may include planning, organizing, and controlling the project. The functions of the project manager may include creating a project plan, assigning tasks to team members, and monitoring progress.
In summary, roles are broad definitions of the tasks and activities that a person or group is expected to perform, while functions are specific tasks or activities that are part of a role.