Tim Stein, Ph.D., is the founder and CEO of Business Performance Associates, Inc. (BPA), a consulting firm that specializes in both quality systems for biomedical companies and computer system validation. Tim is the author of Computer System Risk Management and Validation Life Cycle which is scheduled for release in April 2006 by Paton Press. Tim has written a set of policy and procedure documents and templates for computer system validation that are available through ComplianceOnline.