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Missions represent a key concern in the development of Systems-of-Systems (SoS) since they are related to both capabilities of constituent systems and interactions among these systems that contribute to the accomplishment of global goals of the SoS. In a mission-oriented approach to design software-intensive SoS, the activity towards the concretization of the mission model is its refinement to an...
Systems-of-systems (SoS) represent a class of systems resulted from the interaction among independent systems that cooperate to form a larger and more complex system aiming at accomplishing global missions. An inherent characteristic of SoS is the high heterogeneity of their constituent systems, which are distributed, independent, and developed with different technologies. In addition, SoS are highly...
Systems-of-systems (SoS) are systems resulted from the interaction among other independent constituent systems that collaborate to offer new functionalities towards accomplishing global missions. Each of these constituent systems accomplishes its individual missions and is able to contribute to the achievement of the global missions of the SoS, both being viewed as a set of associated goals. In the...
Dynamic software architectures are those that describe how components and connectors can be created, interconnected, and/or removed during system execution. Most existing architecture description languages (ADLs) provide a limited support to expressively describe these architectures and entail architectural mismatches and inconsistencies between architecture and implementation due to their decoupling...
Systems-of-Systems (SoS) result from associating independent, complex systems for fulfilling given missions. In particular, SoS require software architectures that can cope with their dynamic, critical nature. Selecting adequate Architecture Description Languages (ADLs) for representing such architectures contributes for a better communication, analysis, and evolution of these systems. Nonetheless,...
Adaptation is an important concern in cloud-based applications composed of services provided by different cloud providers since cloud services can suffer from Quality of Services(QoS) fluctuations. Other conditions that can also trigger an adaptation process at runtime are the unavailability of services or the violation of user-defined policies. Moreover, the detection and reaction on such changes...
This paper presents a dynamic adaptation process for multi-cloud applications that is composed of two phases. The first one is a modeling phase, which borrows the ability for representing commonalities and variabilities from the software product lines (SPL) paradigm. In this phase, a customized model feature specifies the configuration of cloud services to be used by an application (commonalities)...
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