Thirty papers presented at an April 2001 symposium report on measurement, empirical studies and other quantitative and qualitative methods applied to software development, management and quality assurance. Some of the topics are: a software cost estimation model based on categorical data, the influence of team size and defect detection technique on inspection effectiveness, information theory based measures of coupling and cohesion of a module, and usage measurement for statistical web testing and reliability analysis. Other topics include evaluating software degradation through entropy, a feedback approach to validation of a GQM study, the impact of design properties on development cost in object oriented systems, and using simulation to evaluate prediction techniques. No subject index. c. Book News Inc.