Which term describes the practical aspects of one's job role, including expectations and duties?

The correct term that describes the practical aspects of one's job role, including expectations and duties, is established through the concept of job definition. Job definition encompasses the fundamental responsibilities, tasks, and requirements associated with a specific position within an organization. It outlines what is expected from an employee and provides clarity on their role, which allows both the employee and employer to understand their obligations.

Job evaluation, on the other hand, is a systematic process used to determine the relative worth of a job in comparison to other jobs within the organization, often for the purpose of establishing fair compensation. Job title simply refers to the name of the position, which may not fully convey the nuances of the role. Job performance assesses how well an individual executes their job responsibilities but doesn't address the specifics of what those duties are. Thus, job definition is the most accurate choice when discussing the practical aspects of job roles.