This document discusses the importance of Human Resource Management (HRM) in organizations, specifically focusing on the implications for line managers and employees. It explains Guest's model of HRM and compares it to Storey's definition of HRM, personnel, and industrial relations (IR) practices. It also discusses the types of flexibility that can be developed in an organization and assesses the use of flexible working practices from both the employee and employer perspective. Additionally, it explores the impact of changes in the labor market on flexible working practices.