Collaborative SLA and reputation-based trust management in cloud federations

Papadakis-Vlachopapadopoulos, Konstantinos; González, Román Sosa; Dimolitsas, Ioannis; Dechouniotis, Dimitrios; Ferrer, Ana Juan; Papavassiliou, Symeon

doi:10.1016/j.future.2019.05.030

Cited by 46 publications

(22 citation statements)

References 15 publications

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“…For task offloading, there are various requirements of both users and the service provider in edge-cloud computing. The users' satisfaction is one of the most important criteria for evaluating the quality of task offloading methods, as it greatly affects the profit of the service provider due to the penalty when there is any violation of service level agreement (SLA) [17], and it largely determines users' willingness to pay for services from the provider in the future [114], [115]. Thus, user requirements must be concerned and satisfied when conducting task offloading.…”

Section: Optimization Objectivementioning

confidence: 99%

A Survey and Taxonomy on Task Offloading for Edge-Cloud Computing

et al. 2020

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Edge-cloud computing, combining the benefits of both edge computing and cloud computing, is one of the most promising ways to address the resource insufficiency of smart devices. Task offloading is an important challenge must be addressed for edge-cloud computing in practice, which decides the place and the time for performing each task. Even though there is existing research focusing on the task offloading in edge-cloud computing, a lot of problems should be solved before the application of these offloading technologies. Thus, in this article, we first propose a taxonomy of task offloading in edge-cloud environments to investigate and classify related research articles, and then summarize several challenges which have not been addressed for future research directions on this area to promote the development of edge-cloud market.

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Section: Optimization Objectivementioning

confidence: 99%

A Survey and Taxonomy on Task Offloading for Edge-Cloud Computing

et al. 2020

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“…With respect to SLAs, Papadakis-Vlachopapadopoulos et al (2019) propose a collaborative SLA and reputation-based trust management solution for federated cloud environments. It consists of a hybrid reputation system that takes into account both user ratings and monitoring of SLA violations.…”

Section: Related Workmentioning

confidence: 99%

Profiling SLAs for cloud system infrastructures and user interactions

Cambronero

Bernal

Valero

et al. 2021

PeerJ Computer Science

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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.

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“…In this type of trust model, trust is decided based on the service agreement and contracts between cloud service providers and cloud consumers. Service level agreements (SLA) and service policy reports are the most frequently used QoS criteria [113]. By evaluating the appropriate criteria suitable to measure service level agreement, the cloud service provider (CSP) has been chosen.…”

Section: Service Level Agreement (Sla) Based Trust Modelmentioning

confidence: 99%

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2021

JESTR

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The emergence of the cloud computing paradigm has influenced business organizations for migration over two decades. This has enabled a more incredible communication speed paired with a better fault tolerance of web-based applications and the scope of having practically unlimited storage available for the user and business data. Such colossal data availability over cloud platforms has increased concerns about the security of the same from various threats such as unauthorized eavesdropping, deliberate malicious mutation of data, loss of data integrity, and identity theft. The presence of such security vulnerabilities has rendered cloud security to be an active research area. This article aims to deep dive into the present stateof-the-art in cloud security research and mitigation approaches. It is observed that cloud storage, cloud services are the widely used applications among the organization. However, vulnerabilities and security challenges faced by this two area is maximum. Besides, outsourcing sensitive information to cloud service provider's (CSP) end leads to trust issues among organizations. This article performs a detailed comparative analysis of the security frameworks developed towards cloud storage level, cloud service level, and cloud trust level to date and throws light on future research directives. All the existing research has been evaluated against CIA (confidentiality, Integrity, Availability) principles here.

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Collaborative SLA and reputation-based trust management in cloud federations

Cited by 46 publications

References 15 publications

A Survey and Taxonomy on Task Offloading for Edge-Cloud Computing

A Survey and Taxonomy on Task Offloading for Edge-Cloud Computing

Profiling SLAs for cloud system infrastructures and user interactions

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