If Diona is writing about what a worker does, how they do it, and their working conditions, what document is she creating?

Diona is creating a job description. This document outlines the duties and responsibilities associated with a specific position within an organization, detailing what the worker does, how they perform their tasks, and the working conditions they can expect. A job description serves as a key tool in recruitment, as it provides potential candidates with a clear understanding of the role's expectations and requirements.

In contrast, a job application is the form that candidates fill out to apply for a position, summarizing their qualifications and experiences. A job specification differs from a job description in that it focuses on the qualifications needed for a position, such as skills, education, and experience, rather than the specific tasks performed. A performance appraisal, on the other hand, is a process used to evaluate an employee's performance against predefined criteria over a period, which is not the purpose of the document Diona is creating.