Technology has changed everything with great extent, the methods of production, the process of recruitment, the training techniques, and new equipment etc. Now it’s up to HR personnel’s to work with their functions as shown below to best manage the workforce. With the 21st century in motion human resource management will face some of the old struggles and HR will be forced to face many new challenges. The main objective of HR is to recruit, retain, train, retrain and keep workers satisfied. Indeed, these responsibilities can be challenging in the 21st century, especially with changing roles, a multi-generational workforce, and globalization.