The main purpose of this chapter is to explain what hr managers do, and to describe more fully how today’s hr function helps companies meet the challenges of globalized competition. We’ll see that Hr management-activities like recruiting, training, compensating, appraising, and developing employee-is part of every manager’s job. And we’ll see that hr is also a distinct function, with an hr manager assisting the manager’s human resource management jobs, crucial global and competitive trends, and how hr managers use technology and modern hr measurement systems to create the high-performance work systems employers need today.