This document discusses job descriptions and competency models. It explains that job descriptions should be valid, reliable, and accurate to be effective for HR functions like recruitment, selection, performance management, and training. It outlines the typical components of a job description including the job title, overview, department, duties, and requirements. Competency models describe the skills needed across an organization and can be used to guide training and hiring. Developing a competency model involves collecting data from high performers to identify the key competencies.