Probabilistic Quality of Service aware Service Selection

Autor:	Suñé, Agustín E. Martinez, Pombo, Carlos G. Lopez
Rok vydání:	2022
Předmět:	Computer Science - Software Engineering Computer Science - Logic in Computer Science D.2 D.2.4 D.2.1 F.3.1
Druh dokumentu:	Working Paper
Popis:	In software-as-a-service paradigms software systems are no longer monolithic pieces of code executing within the boundaries of an organisation, on the contrary, they are conceived as a dynamically changing collection of services, collectively executing, in pursuit of a common business goal. An essential aspect of service selection is determining whether the Quality of Service (QoS) profile of a service satisfies the QoS requirements of a client. In realistic execution environments, such QoS values might be influenced by external, non-controllable events, making it impossible for the service provider to guarantee that the values characterised by a QoS profile will be met, naturally leading to the need of a probabilistic interpretation of QoS profile. In this work we propose: 1) a model for describing probabilistic QoS profiles based on multivariate continuous probability distributions, 2) a language for describing probabilistic QoS requirements, and 3) an automatic procedure for assessing whether a probabilistic QoS profile satisfies a probabilistic QoS requirement. Comment: 18 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2205.09877 Zobrazit plný text záznamu View this record from Arxiv