On behalf of the PROFES Organizing Committee we are proud to present the proce- th ings of the 11 International Conference on Product-Focused Software Process Improvement (PROFES 2010), held in Limerick, Ireland. Since the first conference in 1999 the conference has established its place in the software engineering community as a respected conference that brings together participants from academia and industry. The roots of PROFES are in professional software process improvement motivated by product and service quality needs. The conference addresses both the solutions found in practice as...