Functions of a human resources department.

  Please respond to the following: Determine the top three functions of a human resources department. Be sure to cite where you retrieved this information. Provide one example of each of the three functions of a human resources department. Explain why you believe these three functions add value to the business model. Be sure to respond to at least one of your classmates’ posts. Make sure to utilize credible sources as needed to provide support to your claims.