Annotation Systems of Systems (SoS) have become increasingly complex and are frequently used in highly distributed, dynamic, and open environments SoS have emerged as a new class of evolving software systems, where constituent systems (themselves systems in their own right) work cooperatively in order to fulfill specific missions SoS are characterized by managerial and operational independence, geographic distribution, evolutionary development, and creation of emergent behavior These characteristics have therefore raised substantial challenges to software engineering researchers and practitioners. |