RT Journal Article
T1 Profiling SLAs for cloud system infrastructures and user interactions
A1 Bernal, Adrián
A1 Valero, Valentín
A1 Cambronero, M. Emilia
A1 Núñez Covarrubias, Alberto
A1 Cerro Cañizares, Pablo
AB Cloud computing has emerged as a cutting-edge technology which is widely used by both private and public institutions, since it eliminates the capital expense of buying, maintaining, and setting up both hardware and software. Clients pay for the services they use, under the so-called Service Level Agreements (SLAs), which are the contracts that establish the terms and costs of the services. In this paper, we propose the CloudCost UML profile, which allows the modeling of cloud architectures and the users’ behavior when they interact with the cloud to request resources. We then investigate how to increase the profits of cloud infrastructures by using price schemes. For this purpose, we distinguish between two types of users in the SLAs: regular and high-priority users. Regular users do not require a continuous service, so they can wait to be attended to. In contrast, high-priority users require a constant and immediate service, so they pay a greater price for their services. In addition, a computer-aided design tool, called MSCC (Modeling SLAs Cost Cloud), has been implemented to support the CloudCost profile, which enables the creation of specific cloud scenarios, as well as their edition and validation. Finally, we present a complete case study to illustrate the applicability of the CloudCost profile, thus making it possible to draw conclusions about how to increase the profits of the cloud infrastructures studied by adjusting the different cloud parameters and the resource configuration.
PB PeerJ
YR 2021
FD 2021-05-12
LK https://hdl.handle.net/20.500.14352/105279
UL https://hdl.handle.net/20.500.14352/105279
LA eng
NO Spanish Ministry of Science and Innovation, “FAME”: RTI2018-093608-B-C32 and “MASSIVE”: RTI2018-095255-B-I00
NO Junta de Comunidades de Castilla-La Mancha: SBPLY/17/180501/000276/01
NO Region of Madrid: FORTE-CM and S2018/TCS-4314
NO Madrid Government (Comunidad de Madrid-Spain) under the Multiannual Agreement with the Complutense University as part of the Program to Stimulate Research for Young Doctors in the context of the V PRICIT (Regional Programme of Research and Technological Innovation) under grant PR65/19-22452
DS Docta Complutense
RD 8 abr 2025