RT Conference Proceedings T1 Applying QoS in FaaS applications: a software product line approach A1 Serrano Gutiérrez, Pablo A1 Ayala-Viñas, Inmaculada A1 Fuentes-Fernández, Lidia K1 Soporte lógico - Desarrollo K1 Comunicaciones K1 Sonido - Transmisión AB A FaaS system offers numerous advantages for the developer of microservices-based systems since they do not have to worry about the infrastructure that supports them or scaling and maintenance tasks. However, it is not easy to apply quality of service (QoS) policies in these kind of applications. The high number of functions that an application can have and its various implementations introduce a high variability that requires a mechanism to decide which functions are more appropriate to achieve specific goals. We propose a Software Product Line based approach that uses feature models that model the application’stasks and operations, considering the family of services derived from the multiple functions that can perform a specific procedure. Through an optimization process, the system obtains an optimal configuration that it will use to direct service requests to themost appropriate functions to meet certain QoS requirements. YR 2022 FD 2022 LK https://hdl.handle.net/10630/24320 UL https://hdl.handle.net/10630/24320 LA spa NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026