Wayne O’Brien is an Advisory Software Engineer at IBM, where he develops publications and online help for a variety of products. He holds a Master of Science degree from Rensselaer Polytechnic Institute (RPI) of Troy, New York. Wayne co-authored the textbook "Introduction to the New Mainframe: z/OS Basics," which has been downloaded more than 400,000 times. For your copy, visit http://www.redbooks.ibm.com.