The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Cloud services are gaining popularity with times. Service level agreement (SLA) serves a basic understanding between the clients and cloud service providers (CSP). Ensuring secured and adequate service is a basic need of the customers. In this work a set of compliance parameters for cloud service level agreement is identified. A generic rule base is designed to empower the process with an automated...
Cloud computing represents a disruptive innovation in the way of provisioning and managing IT and network resources. One of the main challenge of this paradigm is the monitoring of the actual services performance offered by different Cloud service providers. For this reason, service level management plays a central role to ensure the quality of services in Public Cloud and requires a structured approach...
The exponential growth of cloud based applications and the increased number of cloud users have given rise to new challenges for cloud service providers, especially for Infrastructure as a Service (IaaS) providers. This exponential growth of datacenters increases the energy consumption, along with its carbon footprints. Hence, better energy aware techniques not only reduce energy costs, but they are...
Cloud computing is a new form of computing which is a considered as an emerging technology for delivering service. Cloud computing consists of several consumer who demands a variety of services as per their need which changes from time to time. So it is the job of cloud computing to make the resources available to the customers according to their need. As there are limited resources so cloud computation...
Various SLA monitoring systems are proposed by different features and abilities to evaluate the agreed SLA. The current SLA monitoring systems in cloud computing for its structural, behavioral characteristics and situation are also in place. The systematic reviews of a well-known methods and approaches shows a significant numbers of researches been done in this area. Based on the number of effort...
For service level agreement aware service composition problem, the sharing property is integrated into it to further decrease the cost and make more applications can be successfully deployed. Based on the characteristic of this problem, the attributes of throughput, latency and cost are simultaneous considered and a multi-objective service sharing optimization model is built. To make more feasible...
Cloud computing nowadays offers multiple web services for use; these web services could do the same functionalities but may differ in quality of service. Providers tend to offer more complex web services through combining raw web services from the cloud. Therefore, a significant research problem is how to select the best candidate service from a collection of services and to take into account the...
Nowadays, many companies have migrated their applications and data to the cloud. Among other benefits of this technology, the ability to answer quickly business requirements has been one of the main motivations. Thereby, in cloud environments, resources should be acquired and released automatically and quickly at runtime. This way, to ensure QoS, the major cloud providers emphasize ensuring of availability,...
Cloud computing platform has gained popularity among service providers and consumers to perform business operations due to the ease of communication and transaction convenience in terms of accessibility and availability. However, due to the vulnerability of this dynamic open environment, it is crucial to have a binding agreement between all the service parties for ensuring trust while fulfilling the...
A Service Level Agreement (SLA) represents an agreement between a cloud provider and cloud customer in the context of a particular service provision. This raises the following question: How to describe the SLA terms between prospective signatories, such as service levels, Quality of Service properties, penalties in case of SLA violation, etc. SLA can be represented by specialized languages for easing...
In cloud environments, resources should be acquired and released automatically and quickly at runtime. Therefore, ensuring the desired QoS is a great challenge for the cloud service provider. Moreover, it increases when we have large amount of data to be manipulated in this environment. Considering that, performance is an important requirement for most customers when they migrate their applications...
This study attempts to upgrade the service efficiencies of cloud management by proposing different quality approaches. We design two detecting mechanisms to search the early violation signal by a different quality level of confidence. This research attempts to prevent assignable variables existed in violation situations. We proposed and verified the Moving Range Chart and EWMA Chart by utilizing CLOUDSIM...
Cloud computing is envisioned to provide each IT enabled service as a utility. From hardware to software, it is committed to fulfill all kind of needs with regard to computation, storage, development etc. at cost-effective and efficient manner. The efficient delivery of services in a cloud largely depends on how it schedules the user jobs (cloudlets) over its resources. A plenty of task scheduling...
Cloud computing is increasingly being used to deliver infrastructure, platform and/or software as services over the Internet. The resulting Cloud-based services with various types create complex management situations at the Cloud provider side. In particular, face to a large and dynamic number of service loads, a Cloud provider needs a means to maintain QoS (Quality of Service) levels it has agreed-upon...
This work focuses on the analysis of energy-efficient algorithms for online scheduling in the Infrastructure as a Service (IaaS) type of Cloud computing. The scheduling model is based on service levels that guarantee the quality of service. Each service level is associated to a price per unit of job execution time and a slack factor, which determines the deadline for delivering the results. Once a...
The key issue in cloud computing in enterprises is the management of the Quality of Service (QoS), by an appropriate SLM (Service Level Management). Cloud Service Provider are offering SLMs to their users. We think that a third party SLM can be a better way to assure a robust and equal SLM. This paper presents the elements of third party SLM, namely Cloud Service Registration Agent, Negotiation Agent,...
For delivering scalable, reliable and on-demand services, cloud services are becoming more and more prevalent. Due to dynamic and flexibility in cloud environment, Service Level Agreement (SLA) plays a crucial role in guaranteeing the Quality of Service (QoS) level agreed by participants. Though lots of work on SLA management, few of them have adapted well in such an environment. In this study, we...
Cloud computing and service computing can be integrated into a distributed computing platform which provides a set of services to their users. Different services could cooperate with each other to accomplish more intricate tasks. However, third-party cloud services may cause failures or quality violation of workflow applications. Especially in some critical business scenarios, service performance...
Today, cloud networking which is the ability to connect the user with his cloud services and to interconnect these services within an inter-cloud approach, is one of the recent research areas in the cloud computing research communities. The main drawback of cloud networking consists in the lack of Quality of Service (QoS) assurance and management in conformance with a corresponding Service Level Agreement...
Cloud Computing is a type of computing which can be considered as a new era of computing. Cloud can be considered as a rapidly emerging new paradigm for delivering computing as a utility. In cloud computing various cloud consumers demand variety of services as per their dynamically changing needs. So it is the job of cloud computing to avail all the demanded services to the cloud consumers. But due...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.