The document outlines the key requirements an employer considers when filling a vacancy including cost, time, quality, and resources. Costs include advertising, lost productivity during the vacancy. It can take 1-3 weeks to advertise, interview, and make a hiring decision. Resources like employee time and office space are required for the hiring process. The employer expects a qualified candidate with the necessary education, experience, skills, and flexibility for the role. An example job ad is provided seeking a human resources manager with a business degree, 3+ years experience, and skills in employee relations and communications.