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Service-Oriented Computing (SOC) describes a specific paradigm of computing that utilizes Web services as reusable components in order to develop new software applications. SOC allows distributed applications to work together via the Internet without direct human intervention. In this work, we propose a new SOC-based approach to ensure application development. This approach ensures the discovery, selection, and composition of the most appropriate Web services. With this approach, various requirements (both functional and non-functional) are specified by the developer to satisfy QoS, QoE, and QoBiz parameters and Web services are selected and composed to meet these requirements. Our approach is implemented using the Req-WSComposer (Requirements-based Web Services Composer) platform, whose functionalities are tested using an extended and enriched version of the OWLS-TC dataset, which includes around 10,830 semantic Web services descriptions. The results of our experiments demonstrate that the proposed approach enables users to extract the most appropriate composition solution that satisfies the developer's pre-determined requirements. [ABSTRACT FROM AUTHOR]

In a context in which the Internet provides a platform used to distribute contents, new actors have emerged in the business of multimedia services, who have taken advantage of this new platform to deliver services at lower cost. However, the Internet does not provide a reliable platform to distribute content, which justifies the development of technology that ensures high levels of quality to the end user of the service. This work presents the advances developed in this direction in the context of the Celtic+ Project NOTTS: first, a new Quality of Experience (QoE) evaluation framework that incorporates economical variables in the analysis; second, the implementation of the before mentioned framework in order to analyze how the user's decisions impact of the QoE; and lastly, an emulation platform for Over-The-Top Services (OTT), used to emulate the behavior of these services in real Internet scenarios and to apply the implementation of the framework proposed. [ABSTRACT FROM PUBLISHER]