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Service-Based Applications (SBA) are inherently open and distributed, as they rely on third-party services that are available over the Internet, and have to cope with the dynamism of such operating environment. This motivates the need for SBA to be self-adaptive to accommodate changes in service availability and performance, in consumers' needs and preferences, and more generally in the operational...
Requirements engineering (RE) for self-adaptive systems (SAS) is an emerging research area. The key features of such systems are to be aware of the changes in both their operating and external environments, while simultaneously remaining aware of their users' goals and preferences. This is accomplished by evaluating such changes and adapting to a suitable alternative that can satisfy those changes...
Engineering self-adaptive service-based applications significantly challenges the role of requirements engineering (RE). Such systems need to cope with the evolving requirements at runtime by monitoring the changes in users' preferences and in the environment, evaluating the changes and enacting a suitable behavior ensuring an acceptable level of quality for their users. This calls for continuous...
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