Modelling trust and risk for cloud services

Çayırcı, Erdal; Oliveira, Anderson Santana de

doi:10.1186/s13677-018-0114-7

Cited by 23 publications

(11 citation statements)

References 38 publications

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“…Applying that on cloud computing, uncertainty negatively affects the trust of cloud customers [11,48]. The findings of this study shows a number of uncertainty areas and their implied costs; namely, contract management, monitoring and legal compliance.…”

Section: Cloud Uncertaintymentioning

confidence: 83%

Cloudy transaction costs: a dive into cloud computing economics

Makhlouf

2020

J Cloud Comp

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Looking merely from the neoclassical perspective, cloud computing is price effective. However, according to institutional and transaction cost economics, cloud customers should estimate other costs beyond the price. Such costs may not be known to cloud customers, leading to unmet expectations and implementation challenges. The aim of this paper is to study transaction costs of cloud computing from the customer perspective to make the cloud journey less cloudy, i.e. more informed and well planned. This paper applies transaction cost theory to cloud computing through a 360-degree industry analysis. Expert interviews with vendor, customer and consultancy sides were conducted to understand costs associated with cloud computing. Findings were validated through a case study. Findings of this research indicate that cloud has high 'asset specificity' due to change management costs, meta services costs and business process reengineering costs. Cloud also has a considerable level of 'uncertainty' asking for managing contracts, investing in cloud-specific monitoring solutions and consciously reviewing of the legal compliance. Finally, cloud has high 'transaction frequency', which compensates for the needed investments triggered by 'uncertainty' and 'asset specificity'.

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Section: Cloud Uncertaintymentioning

confidence: 83%

Cloudy transaction costs: a dive into cloud computing economics

Makhlouf

2020

J Cloud Comp

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“…The survey aims to straight away provide a guidance to the professionals, academicians and researchers so that they can comprehend the trust mechanism realted changes by putting forward the challenging issues and state of the art information. Erdal Cayirci et.al [7](2018), proposes two models for federated cloud services namely, joint trust and risk model. These models consider the history of performance of the CSPs.…”

Section: Discussionmentioning

confidence: 99%

A Conception for Identifying Trust Service Providers in Collaboration Cloud Computing

2019

ijrte

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cloud computing model has proven to be effective and popular in offering the benefits such as virtually limitless storage volume, availability and scalability. Hence the cloud environment is managed by varied trust management models. Choosing the most suitable trust management model by the user is often a difficult task. Since there is multiple cloud services offering different level of performances with same functionalities it becomes hard for the user to detect and select the apt cloud service. Csps tend to offer cloud related services to the cloud users keeping sla in consideration. Depending on sort of csp administration offered the payment by the consumer end, each transaction is being evidently distinguished. Regrettably, since qos (quality of service) is not achieved, sla is not looked upon seriously. In various situations and recommendations, administration presence doesn’t fulfill the standards and reliability is compromised. The current research paper deals with the difficulty in choosing qualitative csp (cloud service provider). The proposal is of a methodology to reveal the csps trustworthiness pertaining to a cloud scenario. The various levels listed in this mechanism or methodology being: building up of cloud cluster environment, broker creation, machine agent, feedback provider and trust validation. The mentioned system of trust management gains fewer machine agents, feedback is given by external resources, highly effective in trust computing, cpu’s of machine won’t be left idle or sluggish. It can be stated that the proposed mechanism yield to be effective and feasible as validated by the performance analysis and experimental outcomes. The outcome demonstrates the effectiveness of the approach concerning services matching. With effective use of trust model specific service can be chosen by the cloud user.

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“…A joint trust and risk model is introduced in [25] for federated cloud services. The model is based on CAIQ and cloud service providers' performance history extending the work presented in [26].…”

Section: A Trust Evaluation For Constructionmentioning

confidence: 99%

Federating Cloud Systems for Collaborative Construction and Engineering

et al. 2020

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The construction industry has undergone a transformation in the use of data to drive its processes and outcomes, especially with the use of Building Information Modelling (BIM). In particular, project collaboration in the construction industry can involve multiple stakeholders (architects, engineers, consultants) that exchange data at different project stages. Therefore, the use of Cloud computing in construction projects has continued to increase, primarily due to the ease of access, availability and scalability in data storage and analysis available through such platforms. Federation of cloud systems can provide greater flexibility in choosing a Cloud provider, enabling different members of the construction project to select a provider based on their cost to benefit requirements. When multiple construction disciplines collaborate online, the risk associated with project failure increases as the capability of a provider to deliver on the project cannot be assessed apriori. In such uncontrolled industrial environments, ''trust'' can be an efficacious mechanism for more informed decision making adaptive to the evolving nature of such multiorganisation dynamic collaborations in construction. This paper presents a trust based Cooperation Value Estimation (CoVE) approach to enable and sustain collaboration among disciplines in construction projects mainly focusing on data privacy, security and performance. The proposed approach is demonstrated with data and processes from a real highway bridge construction project describing the entire selection process of a cloud provider. The selection process uses the audit and assessment process of the Cloud Security Alliance (CSA) and real world performance data from the construction industry workloads. Other application domains can also make use of this proposed approach by adapting it to their respective specifications. Experimental evaluation has shown that the proposed approach ensures on-time completion of projects and enhanced collaboration performance.

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Modelling trust and risk for cloud services

Cited by 23 publications

References 38 publications

Cloudy transaction costs: a dive into cloud computing economics

Cloudy transaction costs: a dive into cloud computing economics

A Conception for Identifying Trust Service Providers in Collaboration Cloud Computing

Federating Cloud Systems for Collaborative Construction and Engineering

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