Moving the IT Infrastructure to the Cloud

Cloud computing services are nowadays advertised as an emerging business model. Moreover, these services bring innovative solutions in a more sophisticated competitive market. But, the decision for their adoption could be significantly reduced due to organizations’ concerns related to security, privacy, and trust. The challenge involves such questions as where to start, which provider should the company choose or whether it is even worthwhile. Thus, this paper proposes an improved unified framework, based on a previous study where a 6 step process framework was introduced. This improved framework add one new step for security and control after the migration process. At the end, a 7 processes framework is proposed aimed to fulfill organizations’ concerns when decide to adopt cloud computing services with a follow-up step. This additional step intends to help IT directors to make sure everything is working properly in a methodological way, in order to achieve a successful cloud computing migration process. An effective solution that is gaining momentum and popularity for competitive organizations.

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Pathway to Encapsulate Water Quality Models as Cloud Computing Services and Couple with Environmental DSS for Managing Urban River Water Quality

10.5194/egusphere-egu21-8115 ◽

2021 ◽

Author(s):

Tianrui Pang ◽

Jiping Jiang ◽

Fengyuan Zhang ◽

Harsh Yadav ◽

Yunlei Men ◽

...

Keyword(s):

Water Quality ◽

Cloud Computing ◽

Water Quality Management ◽

Urban River ◽

Model Coupling ◽

Computing Services ◽

Service Oriented ◽

Cloud Computing Services ◽

And Control ◽

Water Quality Models

In the era of smart city, developing environmental decision support system (EDSS) integrated with monitoring, modelling, planning and control for smart management of urban river water quality has been widely accepted and implemented around the world. Construction and coupling localized water quality models, such as popular WASP and EFDC by USEPA, to meet different management requirements are fundamental for the surface water EDSS development. However, few reported the technique coupling the advanced version of WASP program with EDSS platform.&#160;Traditional pathway of EDSS integrations or model coupling, e.g. database-oriented interaction, are non-modular, with low efficiency of share and reuse, and difficult for system updating. With the development of cloud computing and web services, the service-oriented design are the future trends of model coupling.In this paper, a generic interface/module interacting with WASP V7.5 program is developed and the technical route of tightly coupling is proposed. The web service encapsulation of localized WASP models and advanced cloud computing services are implemented with the help of OpenGMS framework and SaaS (software as services) pattern. To meet the basic requirements of urban water quality management, the water assimilative capacity allocation and pollution load reduction planning are work out by the cloud computing services, which achieves operational running of EDSS.The study area is located in Maozhou River Basin, an urban river in Shenzhen, China. According to the national water environment code and regulations, COD (chemical oxygen demand) and NH3-N (ammonia nitrogen) are set as the ending point for supervision and the corresponding WASP model of Maozhou River is constructed and calibrated by historical field data. The computing components and web-services are integrated into the comprehensive water quality management platform of Maozhou River through the model configuration and controlling data parameterization. One version of the Maozhou River EDSS has been deployed and is online on the Shenzhen ecological and environmental intelligent management and control center since January, 2021.Along with WASP, service-oriented encapsulating of EFDC and SWMM based computing components for particular management purposes are also implemented based on the same technique route since both of them are developed by USEPA with similar inputs and outputs. The technology of model coupling and platform integration mentioned in this paper provides a valuable paradigm for linking other environment models into specific management business. Under the proposed technical pathway, the interaction of model interface between computation engine and system business layer can be easily updated along with the changes of management requirements. It provides the merits of rapidly development, easily deployment and maintenance.

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Total cost of ownership of infrastructure as a service for SME

Ekonomika ◽

10.5937/ekonomika2104037r ◽

2021 ◽

Vol 67 (4) ◽

pp. 37-54

Author(s):

Ognjen Radović ◽

Maša Georgiev ◽

Milica Đorđević

Keyword(s):

Cloud Computing ◽

It Infrastructure ◽

Infrastructure As A Service ◽

Total Cost Of Ownership ◽

Total Cost ◽

Computing Services ◽

Cost Of Ownership ◽

Start Up ◽

Cloud Computing Services ◽

The Garch Model

Cloud Computing offers significant cost benefits for SMEs that often do not manage internal IT infrastructure and start-up companies that do not have their own IT infrastructure. This paper presents a total cost of ownership (TCO) approach for cloud computing services with an emphasis on the infrastructure as a service (IaaS) model. Also, the paper presents a methodology for estimating total cost of ownership (TCO) when running computer instances in the IaaS cloud using the GARCH model to predict transaction volatility. The research results show that it is possible to successfully use GARCH models when there is historical data on the number of transactions. In addition, simulation shows that, when there are large oscillations in the number of transactions, the best choice is to reserve instances according to the Partial-Upfront price model. In contrast, if the transaction number is relatively stable, the best choice is the All-Upfront model.

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A Comprehensive Review on Cloud Computing and Cloud Security Issues

International Journal of Scientific Research in Computer Science Engineering and Information Technology ◽

10.32628/cseit206489 ◽

2020 ◽

pp. 483-490

Author(s):

Supongmen Walling

Keyword(s):

Cloud Computing ◽

Service Providers ◽

Primary Objective ◽

Cloud Services ◽

It Infrastructure ◽

Security Issues ◽

Computing Services ◽

Processing Power ◽

Wide Range ◽

Cloud Computing Services

Cloud computing is a type of computing where computing services such as applications, storage, infrastructure, processing power are hosted by some vendors (cloud vendors) over the Internet and delivered to users on on-demand basis. A company can benefit from cloud computing in the sense that they can rent access to anything from applications to storage to processing power rather than owning their own IT infrastructure. By using cloud-computing services, companies can avoid the various costs and complexities associated with owning and maintaining their own IT infrastructure as everything is taken care of by the service providers. Cloud computing is a paradigm in which both the users and the service providers are benefited. Service providers are greatly benefited from cloud computing by providing cloud services to a wide range of customers. The primary objective of this paper is to give an overview on cloud computing encompassing its features, the pros and cons of cloud computing and the challenges that comes with it. Furthermore, this paper also presents a list of security concerns in cloud computing which stands in the way of wide spread adoption of cloud computing thereby motivating researchers to devise competent solutions to tackle these ongoing security issues.

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A Unified Framework for User-Preferred Multi-Level Ranking of Cloud Computing Services Based on Usability and Quality of Service Evaluation

IEEE Access ◽

10.1109/access.2020.3027775 ◽

2020 ◽

Vol 8 ◽

pp. 180054-180066

Author(s):

Farrukh Nadeem

Keyword(s):

Cloud Computing ◽

Quality Of Service ◽

Service Evaluation ◽

Unified Framework ◽

Computing Services ◽

Cloud Computing Services ◽

Multi Level

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Cloud Computing in Library

Bibliotheca Lituana ◽

10.15388/bibllita.2014.3.15563 ◽

2014 ◽

Vol 3 ◽

pp. 94-112

Author(s):

Angelė Pečeliūnaitė

Keyword(s):

Cloud Computing ◽

Scientific Community ◽

Digital Age ◽

International Experience ◽

The Internet ◽

Library Services ◽

General Activity ◽

Computing Services ◽

Cloud Computing Services

The article analyses the possibility of how Cloud Computing can be used by libraries to organise activities online. In order to achieve a uniform understanding of the essence of technology SaaS, IaaS, and PaaS, the article discusses the Cloud Computing services, which can be used for the relocation of libraries to the Internet. The improvement of the general activity of libraries in the digital age, the analysis of the international experience in the libraries are examples. Also the article discusses the results of a survey of the Lithuanian scientific community that confirms that 90% of the scientific community is in the interest of getting full access to e-publications online. It is concluded that the decrease in funding for libraries, Cloud Computing can be an economically beneficial step, expanding the library services and improving their quality.

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One Implementation Method of Trust Evaluation Tool Used on Cloud Computing Service

Recent Advances in Electrical & Electronic Engineering (Formerly Recent Patents on Electrical & Electronic Engineering) ◽

10.2174/2352096511666180528075030 ◽

2019 ◽

Vol 12 (3) ◽

pp. 223-231

Author(s):

Shengju Yang

Keyword(s):

Cloud Computing ◽

Access Control ◽

Service Providers ◽

Assessment Method ◽

Trust Evaluation ◽

Evaluation Tool ◽

Computing Services ◽

Business Goals ◽

Cloud Computing Service ◽

Cloud Computing Services

In order to solve the trust problems between users and cloud computing service providers in cloud computing services, the existing trust evaluation technology and access control technology in the cloud computing service are analyzed. And the evaluation index of cloud computing is also analyzed. Users can calculate the relevant indicators of cloud computing service according to their own business goals, and choose the appropriate cloud computing services according to their own trust need. In addition, the reliability assessment method of users based on the service process is proposed. Cloud computing access control system can be used for user credibility evaluation, and it can handle user access requests according to user's creditability. In the study, a cloud computing service trust evaluation tool is designed, and the modeling and architecture designs of trust evaluation are also given. The effectiveness of the method is verified by experiments on cloud computing service evaluation methods.

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