Description:This book constitutes the refereed proceeding of the 11th European Software Process Improvement Conference, EuroSPI 2004, held in Trondheim, Norway in November 2004.The 18 revised full papers presented were carefully reviewed and selected from 31 submissions. The papers are organized in topical sections on agile methods and global software development, software process improvement techniques, studies of software process improvement, knowledge management, and effort estimation.