Full Papers.- FOCSE: An OWA-based Evaluation Framework for OS Adoption in Critical Environments.- Open Source Collaboration for Fostering Off-The-Shelf Components Selection.- From the Cathedral to the Bazaar: An Empirical Study of the Lifecycle of Volunteer Community Projects.- Project Entity Matching across FLOSS Repositories.- Can Knowledge Management be Open Source?.- Emergent Decision-Making Practices in Free/Libre Open Source Software (Floss) Development Teams.- Experiences on Product Development with Open Source Software.- Exploring the Effects of Coordination and Communication Tools on the Efficiency of Open Source Projects using Data Envelopment Analysis.- Innovation in Open Source Software Development: A Tale of Two Features.- Corporate Involvement of Libre Software: Study of Presence in Debian Code over Time.- Sprint-driven development: working, learning and the process of enculturation in the PyPy community.- Using Repository of Repositories (RoRs) to Study the Growth of F/OSS Projects: A Meta-Analysis Research Approach.- Community Structure, Individual Participation and the Social Construction of Merit.- OpenBQR: a framework for the assessment of OSS.- Network Analysis...