On behalf of the PROFES Organizing Committee we are proud to present to you the proceedings of the 6th International Conference on Product Focused Software Process Improvement (PROFES 2005), held in Oulu, Finland. Since 1999, PROFES has established itself as one of the recognized inter- tional software process improvement conferences. Thepurposeoftheconferenceistobringtolightthemostrecent?ndingsand results in the area and to stimulate discussion between researchers, experienced professionals,andtechnologyproviders.Thelargenumberofparticipantscoming from industry con?rms that the conference provides a variety of up-to-date t- ics and tackles industry problems. The main theme of PROFES is professional software process improvement (SPI) motivated by product and service quality needs. SPI is facilitated by software process assessment, software measurement, process modeling, and technology transfer. It has become a practical tool for quality software engineering and management. The conference addresses both the solutions found in practice and the relevant research results from academia. This is re?ected in the 42 full papers, which are - as in the years before - a well-balanced mix of academic papers as well as industrial experience reports. The business of developing new applications like mobile and Internet services orenhancingthefunctionalityofavarietyofproductsusingembeddedsoftwareis rapidlygrowing,maturingandmeetingtheharshbusinessrealities.Theaccepted papers focusing on wireless and the Internet are grouped into a special "mobile and wireless" session. WewishtothankVTTElectronics,theUniversityofOuluincludingInfotech, and Fraunhofer IESE for supporting the conference. We are also grateful to the authors for high-quality papers, the Program Committee for their hard work in reviewing the papers, the Organizing Committee for making the event possible, and all the numerous supporters who helped in organizing this conference.

This book constitutes the refereed proceedings of the 4th International Conference on Product Fucused Software Process Improvement, PROFES 2002, held in Rovaniemi, Finland in December 2002. The 48 revised papers presented together with 2 keynote contributions were carefully reviewed and selected from 70 submissions. The papers are organized in topical sections on improvement management, process modeling, software quality, Agile software development, process improvement approaches, methods and techniques, embedded software process improvement, process improvement case studies, effective use of measurements, wireless services, use cases, knowledge management, embedded systems methods, COTS quality techniques, frameworks, mobile solutions, and methods and techniques.

The Third International Conference on Product Focused Software Process Improvement (PROFES 2001) continued the success of the PROFES 99 and PROFES 2000 conferences. PROFES 2001 was organized in Kaiserslautern, Germany, September 10 13, 2001. The PROFES conference has its roots in the PROFES Esprit project (http: //www.ele.vtt.fi/profes/), but it quickly evolved into a full fledged general purpose conference in 1999 and since then it has gained wide spread international popularity. As in previous years, the main theme of PROFES 2001 was professional software process improvement (SPI) motivated by product and service quality needs. SPI is facilitated by software process assessment, software measurement, process modeling, and technology transfer and has become a practical tool for quality software engineering and management. The conference addresses both the solutions found in practice as well as relevant research results from academia. The purpose of the conference is to bring to light the most recent findings and results in the area and to stimulate discussion between the researchers, experienced professionals, and technology providers for SPI."