This issue includes extended versions of selected best papers from the 7th International Workshop on Formal Aspects of Component Software (FACS 2010) held in Guimarães, Portugal on October 14–16, 2010. The component-based software development approach has emerged as a promising paradigm to cope with an ever increasing complexity of present-day software solutions by bringing sound production and engineering principles into software
engineering. However, many conceptual and technological issues remain that challenge component-based software development theory and practice. To address these issues, FACS seeks to provide a forum for researchers and practitioners in the areas of component software and formal methods to foster a better understanding of the component-based paradigm and its applications as well as how formal methods can or should be used to make component-based software development succeed
