This book constitutes the refereed proceeding of the 14th European Software Process Improvement Conference, EuroSPI 2007, held in Potsdam, Germany, in September 2007.The 18 revised full papers presented together with an introductory paper were carefully reviewed and selected from 60 submissions. The papers are organized in topical sections on enforcement, alignment, tailoring, focus on SME issues, improvement analysis and empirical studies, new avenues of SPI, SPI methodologies, as well as testing and reliability.