Resumen de Contribuciones al desarrollo de sistemas centrados en la calidad de servicio a través de la estimación dinámica de propiedades no funcionales
As more technology is incorporated into our daily lives, the demand for services that improve our quality of life and experiences, grows. However, the success of these services is not established solely based of their functionality, but also, and increasingly importantly, considering their Quality of Service (QoS). The quality of service of a software system is related to how well it behaves in relation to certain non-functional properties, such as performance, reliability, or user satisfaction, among others. Being able to evaluate the QoS of a system is crucial to be able to make the best of new technologies and, therefore, the development of systems focused on QoS is of the utmost importance.
This Thesis aims to contribute to the design and implementation of QoS metrics through the dynamic estimation of non-functional properties. A formal approach is proposed to estimate, based on the available contextual information, a series of QoS metrics associated with the non- functional properties considered relevant in each application or scenario. In this vein, a set of modelling tools has been developed to ease the adoption of the proposed approach, abstracting the user from all the complexity of its implementation. The proposed approach seeks to promote the role of QoS Engineers, guiding them in the use of the developed tools, so that they can specify (at design time) and estimate (at runtime) QoS metrics defined on relevant non- functional properties.
