The traditional sessions of CPEUG are again technically stimulating and stress better approaches in CPE. New measurement and prediction techniques are presented to expand the CPE practitioner's set of available tools. Actual experiences are also presented to show each of us what approaches shouldand should notbe used. The CPEUG 80 program has been prepared by many people. The Conference Committee, session chairpersons, authors, tutors, and referees all deserve recognition for their time and patience. The excellent administrative support of Cathy Casey and Terri Schroeder merit special recognition. All of these individuals have contributed to the success of this year's program, James 0. Mulford CPEUG Program Chairman