Our results indicated that only 25% of the developers may be considered as key developers. In this paper we describe a case study involving the Apache Ant project aimed to identify and characterize key developers in terms of their volume of contribution and social participation. This group of developers is called key developers.
However, a distinct group of developers effectively help evolving the technical core of software projects. Making changes to components that a large number of other components rely on, the technical core, is usually difficult due to the complexity of the coordination of all involved developers. The software architecture of a software system and the coordination efforts necessary to create such system are intrinsically related.
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