This report delves into the multifaceted realm of Human Resource (HR) management, assessing the core objectives and functions of HR within diverse organizational contexts. The report begins by evaluating the HR objectives of businesses, emphasizing employee retention, motivation, and development, using case studies of NHS, Oxfam, and Little Italy Soho. It then scrutinizes HR functions through an ethical lens, highlighting legal compliance, ethical leadership, and data confidentiality. The report further analyzes criteria for assessing HR practices, such as employee retention, profitability, and incentive systems. The subsequent sections explore how HR functions contribute to organizational objectives and examines the HR practices in various sectors and company sizes. It also presents research evidence linking HR practices to positive organizational outcomes, including training, recruitment, and security. Moreover, it explains organizational change models, such as Lewin and Kotter, and their implementation. Finally, the report underscores the impact of high-performance working and human capital investment on organizational practices, focusing on leadership, workforce optimization, and employee engagement, concluding with a summary of the key insights.