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The past several years have seen many new services spread across the Internet. One of the biggest trends has been social media services such as Facebook and Twitter. Although social media is the major trend, it is not the only one. Cloud computing has made a large impact on the computing industry in recent years. Whether being utilized to provide highly scalable robust environments for applications...
The new technology supports new business scenarios or new implementations for the existing ones. The paper describes an implementation of B2B scenario. The Google cloud platform as service makes possible a digital broker system between businesses linked by interests. Architecture of this digital broker consists of common Cloud SQL database, hosted on Google platform, and a Google App Engine application...
This paper presents the system developed to promote the rational use of electric energy among consumers and, thus, increase the energy efficiency. The goal is to provide energy consumers with an application that displays the energy consumption/production profiles, sets up consuming ceilings, defines automatic alerts and alarms, compares anonymously consumers with identical energy usage profiles by...
The current implementations of cloud environment do not have suitable mechanism through which services can be managed to make use of cloud resources. The services in these environments can passively serve users' request only. If a service receives more requests than it can handle in a certain time period, it is subject to malfunctioning. This paper proposes a new approach to service replications that...
Web has become an open platform where everybody can build and run their applications. Big companies can manage the expenditure themselves. Small company or a single user wants to create web services, better they can rent the computing infrastructure. All the big companies are investing heavily on this Cloud technology. Few notable, important and popular cloud based products are g-mail and yahoo mail...
There is an emergence of Cloud application platforms such as Microsoft's Azure, Google's App Engine and Amazon's EC2/SimpleDB/S3. Startups and Enterprise alike, lured by the promise of `infinite scalability', `ease of development', `low infrastructure setup cost' are increasingly using these Cloud service building blocks to develop and deploy their web based applications. However, the precise nature...
The Internet offers an enormous potential for all kinds of services, from Web search to online shopping, from social networks to multi-player online games,from online auctions to online encyclopedias. Many of these services thrive due to a vibrant community support. Making services open to community support offers great potentials but makes them also vulnerable to malicious behavior. Malicious behavior...
Cloud systems require elastic resource allocation to minimize resource provisioning costs while meeting service level objectives (SLOs). In this paper, we present a novel PRedictive Elastic reSource Scaling (PRESS) scheme for cloud systems. PRESS unobtrusively extracts fine-grained dynamic patterns in application resource demands and adjust their resource allocations automatically. Our approach leverages...
WITH the maturity of Web Services and Enterprise Service Oriented Architectures (SOA), new delivery and Web interaction models are now demonstrating how services can be traded outside traditional ownership and provisioning boundaries. The value of SOA comes from having an architecture that readily accommodates change. The more your business changes, the more SOA pays for itself. However, the initial...
Current service cloud models can be easily seen as application-centered: they provide an access point to services and artifacts but, including them as separate resources, they do not offer a unified and cross-application perspective on users' activities. As an answer to this issue, we present a user-centered cloud model which, by enabling services to synchronize on a unified context, enhances users'...
Cloud computing has attracted more and more attentions due to its ability to deliver computing utilities as Internet services. Many industrial companies have successfully applied their Clouds with different technologies and architectures. But the existing Clouds are all computer-based and designed for Web browser. In this paper we propose a Cloud architecture which is based on digital appliances in...
As the growth of IT spending has trended down to the mid-single digits in recent years, the IT services industry has continued to focus on productivity improvement to take out costs. While innovations in new service business and delivery models are keys to margin growth, service quality is ever more important to protect the client base. This paper reports end-to-end current practices in the enterprise...
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