Final answer:
The collection of tasks and responsibilities that one person performs is known as a job description, which lists the expected duties and responsibilities of the role.
Step-by-step explanation:
The collection of tasks and responsibilities performed by one person is known as a job description. A job description outlines what a person in a specific role is expected to do and often includes the purpose, duties, responsibilities, scope,
and working conditions of a job along with the job's title and the name or designation of the person to whom the employee reports. A job description is distinct from a job specification, which details the personal qualities, skills, and background needed for someone to perform the job.