A QoS-based approach for cloud-service matchmaking, selection and composition using the Semantic Web

Abstract

Purpose Cloud computing provides a dynamic, heterogeneous and elastic environment by offering accessible ‘cloud services’ to end-users. The tasks involved in making cloud services available, such as matchmaking, selection and composition, are essential and closely related to each other. Integration of these tasks is critical for optimal composition and performance of the cloud service platform. More efficient solutions could be developed by considering cloud service tasks collectively, but the research and academic community have so far only considered these tasks individually. The purpose of this paper is to propose an integrated QoS-based approach for cloud service matchmaking, selection and composition using the Semantic Web. Design/methodology/approach In this paper, the authors propose a new approach using the Semantic Web and quality of service (QoS) model to perform cloud service matchmaking, selection and composition, to fulfil the requirements of an end user. In the Semantic Web, the authors develop cloud ontologies to provide semantic descriptions to the service provider and requester, so as to automate the cloud service tasks. This paper considers QoS parameters, such as availability, throughput, response time and cost, for quality assurance and enhanced user satisfaction. Findings This paper focus on the development of an integrated framework and approach for cloud service life cycle phases, such as discovery, selection and composition using QoS, to enhance user satisfaction and the Semantic Web, to achieve automation. To evaluate performance and usefulness, this paper uses a scenario based on a Healthcare Decision-Making System (HDMS). Results derived through the experiment prove that the proposed prototype performs well for the defined set of cloud-services tasks. Originality/value As a novel concept, our proposed integrated framework and approach for cloud service matchmaking, selection and composition based on the Semantic Web and QoS characterisitcs (availability, response time, throughput and cost), as part of the service level agreement (SLA) will help the end user to match, select and filter cloud services and integrate cloud-service providers into a multi-cloud environment.

Dynamic Capabilities for SME’s: Ready to Change and Cloud Service Role Toward Digital Business

“…Cloud Service operationally defined as a set of services that provide network access everywhere, adequate, and on-demand to computing resources. Whereas the measurement of variables are internet accessibility, computer self-efficacy, cost and energy efficiency, quality assurance, and enhanced user satisfaction (Modi & Garg, 2019;Mohamed & Pillutla, 2014;Prasad et al, 2018;Qadri & Quadri, 2018;Wang et al,2017). Readiness to changes operationally defined as an individual's beliefs, attitudes, and intentions in implementing and managing existing changes.…”

“…Moreover, cloud service is built from a collection of computers, which are interconnected and virtualized, so that they can provide a set of services that are determined through a Service Level Agreement (SLA). The Cloud Service can provide customers with demand-based computing and storage resources from a remote data center as a utility (Modi & Garg, 2019). Therefore, it can be concluded that cloud service is a set of services that provides network access everywhere, adequate, and on-demand to computing resources that can be configured and available through the technologybased Internet so that it can provide computing service from a remote data center as a utility.…”

“…Qadri & Quadri (2018) stated that the influence of cloud services can be measured using the dimensions of On-Demand Self-Service, Internet Accessibility, Pooled Resources, Elastic Capacity, and Usage-Based Billing while Mohamed & Pillutla (2014) stated that the dimensions of the cloud service are the Systems, semantic protocol layer, and the Virtual machine sub-layer. In addition, other dimensions of cloud service according to several studies include: facilitating conditions, computer self-efficacy, online collaboration, user engagement, industry collaboration, vibrant ecosystem, blockchain technology standardization, regulatory clarity, cost efficiency, energy efficiency, bloat blockchain handling , miner incentives, business case alignment to blockchain capability, sidechains development, blockchain talent pool availability, leadership readiness for a decentralized consensus-based technology, technology investment and maturity, trust on blockchain networks, integration with other cloud services, robust and mature smart contracts platforms , blockchain security and user control on data (privacy), availability, throughput, response time and cost, quality assurance, and enhanced user satisfaction (Modi & Garg, 2019;Prasad et al 2018;Wang et al 2017).…”

“…Perceived ease of use is influenced by facilitating conditions, while social influences influence perceived benefits. Furthermore, Qadri & Quadri (2018) concluded stated that cloud service is ideal for egovernment systems because it provides adequate cost savings and high availability with ease of operation, has the security needed to maintain confidential information such as user details, value, and so on, which ultimately increases the dynamic capabilities of an organization (Modi & Garg, 2019;Mohamed & Pillutla, 2014;Prasad et al, 2018). As such, based on the results of previous studies, the hypothesis is proposed as follows: H1: The higher the level of an organization's cloud services, the higher the dynamic capabilities in the organization.…”

A Formal Technique for Composing Cloud Services

“…The search engine leveraged an agent-based paradigm to build a test bed for service management. Furthermore, in light of de-Information Technology and Control 2020/1/49 6 veloping cloud search engine architectures, a model using semantic Web and quality of service (QoS) was presented in [20]. It matches and composes cloud services for realizing customers' requirements.…”