Richard Denney is a software quality consultant with more than twenty-five years of experience in software development and process management. Denney has been a principal in process improvements for the oil industry' s two largest suppliers of software solutions, Schlumberger and Landmark Graphics (a Halliburton company), and as an affiliate consultant with TeraQuest Metrics, Inc. (part of Borland Software Corporation). Based in Austin, TX, Denney holds B.A. and M.S. degrees in Computer Science from the University of Texas at Austin, and is certified through the Product Development and Management Association (PDMA). For supplemental information or to contact the author, visit http: //www.software-quality-consulting.com.ï¿½ Copyright Pearson Education. All rights reserved.