Exploring Viable Algorithmic Options for Automatically Creating and Reconfiguring Component-based Software Systems: A Computational Complexity Approach (Full Version)
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Component-Based Development (CBD) is a popular approach to mitigating the costs of creating software systems. However, it is not clear to what extent the core component selection and adaptation activities of CBD can be implemented to operate automatically in an efficient and reliable manner or in what situations (if any) CBD is preferable to other approaches to software development. In this paper, we use computational complexity analysis to determine and compare the computational characteristics of fully automatic component-based software system creation and reconfiguration by de novo design, component selection, and component selection with adaptation. Our results show that none of these approaches can be implemented to operate both efficiently and reliably in a fully automatic manner either in general or relative to a number of restrictions on software systems, system requirements, components, and component adaptation. We also give restrictions under which all of these approaches can be implemented to operate both efficiently and reliably. As such, this paper illustrates how different types of computational complexity analysis (in particular, parameterized complexity analysis) can be used to systematically explore the algorithmic options for implementing automatic activities in software engineering.
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