The loss of business and downturn of economics almost occur every day. Thus technology is needed in every organization. Cloud computing has played a major role in solving the inefficiencies problem in organizations and increase the growth of business thus help the organizations to stay competitive. It is required to improve and automate the traditional ways of doing business. Cloud computing has been considered as an innovative way to improve business. Overall, cloud computing enables the organizations to manage their business efficiently. Unnecessary procedural, administrative, hardware and software costs in organizations expenses are avoided using cloud computing. Although cloud computing can provide
advantages but it does not mean that there are no drawbacks. Security has become the major concern in cloud and cloud attacks too. Business organizations need to be alert against the attacks to their cloud storage. Benefits and drawbacks of cloud computing in business will be explored in this paper. Some solutions also provided in this paper to overcome the drawbacks. The method has been used is secondary research, that is collecting data from published journal papers and conference papers.
Recently, organizations have shown more interest in cloud computing because of the many advantages they provide (cost savings, storage capacity, scalability, and speed of loading). Enterprise resource planning (ERP) systems are one of the most important systems that have been upgraded to cloud computing. In this thesis, we focus on cloud ERP interoperability, which is an important challenge in cloud ERP. Interoperability is the ability of different components to work in independent clouds with no or minimum user effort. More than 20% of the risk rate of cloud adoption is caused by interoperability. Thus, we propose web services as a solution for cloud ERP interoperability. The proposed solution increases interoperability between different cloud service providers and between cloud ERP systems with other applications in a company.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
In this paper, the SMB Group examines different cloud computing models and the types of requirements that each can best address, and discusses what midmarket businesses should look for in a cloud solutions provider.
Swiftly increasing demand of computational
calculations in the process of business, transferring of files
under certain protocols and data centers force to develop an
emerging technology cater to the services for computational
need, highly manageable and secure storage. To fulfill these
technological desires cloud computing is the best answer by
introducing various sorts of service platforms in high
computational environment. Cloud computing is the most
recent paradigm promising to turn around the vision of
“computing utilities” into reality. The term “cloud
computing” is relatively new, there is no universal agreement
on this definition. In this paper, we go through with different
area of expertise of research and novelty in cloud computing
domain and its usefulness in the genre of management. Even
though the cloud computing provides many distinguished
features, it still has certain sorts of short comings amidst with
comparatively high cost for both private and public clouds. It
is the way of congregating amasses of information and
resources stored in personal computers and other gadgets
and further putting them on the public cloud for serving
users. Resource management in a cloud environment is a
hard problem, due to the scale of modern data centers, their
interdependencies along with the range of objectives of the
different actors in a cloud ecosystem. Cloud computing is
turning to be one of the most explosively expanding
technologies in the computing industry in this era. It
authorizes the users to transfer their data and computation to
remote location with minimal impact on system performance.
With the evolution of virtualization technology, cloud
computing has been emerged to be distributed systematically
or strategically on full basis. The idea of cloud computing has
not only restored the field of distributed systems but also
fundamentally changed how business utilizes computing
today. Resource management in cloud computing is in fact a
typical problem which is due to the scale of modern data
centers, the variety of resource types and their inter
dependencies, unpredictability of load along with the range of
objectives of the different actors in a cloud ecosystem.
In the context of the 4.0 revolution, technology applications, especially cloud computing will have strong impacts on all areas, including accounting systems of enterprises. Cloud computing contributes to helping the enterprise accounting apparatus become compact, help automate the input process, improve the accuracy of the input data. Besides, the issur of accounting, reporting, risk control and information security also became better, contributing to improving the effectiveness of accounting. However, besides the positive impacts, businesses also face many difficulties in deploying and applying cloud computing. However, this application requirement will become an inevitable trend contributing to improving the operational efficiency of enterprises. To promote this process requires from the State as well as businesses themselves must have awareness and appropriate decisions. Breakthroughs in information technology have dramatically changed the accounting industry and the creation of financial statements. The Internet and the technologies that use the power of the Internet are playing an important role in the management and accounting activities of businesses - who always tend to be ready to receive and use public innovations technology in collecting, storing, processing and reporting information.
Recently, organizations have shown more interest in cloud computing because of the many advantages they provide (cost savings, storage capacity, scalability, and speed of loading). Enterprise resource planning (ERP) systems are one of the most important systems that have been upgraded to cloud computing. In this thesis, we focus on cloud ERP interoperability, which is an important challenge in cloud ERP. Interoperability is the ability of different components to work in independent clouds with no or minimum user effort. More than 20% of the risk rate of cloud adoption is caused by interoperability. Thus, we propose web services as a solution for cloud ERP interoperability. The proposed solution increases interoperability between different cloud service providers and between cloud ERP systems with other applications in a company.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
In this paper, the SMB Group examines different cloud computing models and the types of requirements that each can best address, and discusses what midmarket businesses should look for in a cloud solutions provider.
Swiftly increasing demand of computational
calculations in the process of business, transferring of files
under certain protocols and data centers force to develop an
emerging technology cater to the services for computational
need, highly manageable and secure storage. To fulfill these
technological desires cloud computing is the best answer by
introducing various sorts of service platforms in high
computational environment. Cloud computing is the most
recent paradigm promising to turn around the vision of
“computing utilities” into reality. The term “cloud
computing” is relatively new, there is no universal agreement
on this definition. In this paper, we go through with different
area of expertise of research and novelty in cloud computing
domain and its usefulness in the genre of management. Even
though the cloud computing provides many distinguished
features, it still has certain sorts of short comings amidst with
comparatively high cost for both private and public clouds. It
is the way of congregating amasses of information and
resources stored in personal computers and other gadgets
and further putting them on the public cloud for serving
users. Resource management in a cloud environment is a
hard problem, due to the scale of modern data centers, their
interdependencies along with the range of objectives of the
different actors in a cloud ecosystem. Cloud computing is
turning to be one of the most explosively expanding
technologies in the computing industry in this era. It
authorizes the users to transfer their data and computation to
remote location with minimal impact on system performance.
With the evolution of virtualization technology, cloud
computing has been emerged to be distributed systematically
or strategically on full basis. The idea of cloud computing has
not only restored the field of distributed systems but also
fundamentally changed how business utilizes computing
today. Resource management in cloud computing is in fact a
typical problem which is due to the scale of modern data
centers, the variety of resource types and their inter
dependencies, unpredictability of load along with the range of
objectives of the different actors in a cloud ecosystem.
In the context of the 4.0 revolution, technology applications, especially cloud computing will have strong impacts on all areas, including accounting systems of enterprises. Cloud computing contributes to helping the enterprise accounting apparatus become compact, help automate the input process, improve the accuracy of the input data. Besides, the issur of accounting, reporting, risk control and information security also became better, contributing to improving the effectiveness of accounting. However, besides the positive impacts, businesses also face many difficulties in deploying and applying cloud computing. However, this application requirement will become an inevitable trend contributing to improving the operational efficiency of enterprises. To promote this process requires from the State as well as businesses themselves must have awareness and appropriate decisions. Breakthroughs in information technology have dramatically changed the accounting industry and the creation of financial statements. The Internet and the technologies that use the power of the Internet are playing an important role in the management and accounting activities of businesses - who always tend to be ready to receive and use public innovations technology in collecting, storing, processing and reporting information.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Software as a service for efficient cloud computingeSAT Journals
Abstract This Research paper explores importance of Software As A Service (SaaS) for efficient cloud computing in organizations and its implications. Enterprises now a days are betting big on SaaS and integrating this service delivery model of cloud computing architecture in their IT services. SaaS applications are service centric cloud computing delivery model used as IT Infrastructure which is multi-tenant architecture used to provide rich user experience with desired set of features requested by the cloud user. This research paper also discusses the importance of SaaS application architecture, functionality, efficiency, advantages and disadvantages. Keywords: Cloud Computing, Service Delivery Models, Software as a Service, SaaS Architecture.
Cloud computing has become one of the most interesting topics in the IT world today. Cloud model of computing as a resource has changed the landscape of computing as it promises of increased greater reliability, massive scalability, and decreased costs have attracted businesses and individuals alike. It adds capabilities to Information Technology’s. Over the last few years, cloud computing has grown considerably in Information Technology. As more and more information of individuals and companies are placed in the cloud, there is a growing concern about the safety of information. Many Companies that are considered to be giants in software industry like Microsoft are joining to develop Cloud services [1]. Despite the hype about the cloud, customers are reluctant to deploy their business in the cloud. Security issues is one of the biggest concerns that has been affecting the growth of cloud computing .It adds complications with data privacy and data protection continues to affect the market. Users need to understand the risk of data breaches in the cloud environment. The paper highlights issues related to cloud computing.
A Detail Overview of Cloud Computing with its Opportunities and Obstacles in ...inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Opportunistic job sharing for mobile cloud computingijccsa
Cloud Computing is the evolution of new business era which is covered with many of technologies.These
technology are taking advantage of economies of scale and multi tenancy which are used to decrees the
cost of information technology resources. Many of the organization are eager to reduce their computing
cost through the means of virtualization. This demand of reducing the computing cost and time has led to
the innovation of Cloud Computing. Itenhanced computing through improved deployment and
infrastructure costs and processing time. Mobile computing & its applications in smart phones enable a
new, rich user experience. Due to extreme usage of limited resources in smart phones it create problems
which are battery problems, memory space and CPU. To solve this problem, we propose a dynamic mobile
cloud computing architecture framework to use global resources instead of local resources. In this
proposed framework the usefulness of job sharing workload at runtime reduces the load at the local client
and the dynamic throughput time of the job through Wi-Fi Connectivity.
Cloud computing: Advantages and challenges in the software industry and mobil...Annie Pham
Through the majority of publications and studies, this writing presents the understanding and assessment of changes in the mobile business under the impact of cloud computing technology.
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
EFFECT OF POSTURAL CONTROL BIOMECHANICAL GAIN ON PSYCHOPHYSICAL DETECTION THR...ijbbjournal
A Sliding Linear Investigative Platform for Assessing Lower Limb Stability (SLIP-FALLS) was employed to study postural control biomechanical reaction to external perturbations in a short ≤16mm postural perturbation. Head acceleration were evaluated while blindfolded subjects stood on a platform that was given a short anterior perturbation presented in one of 2 sequential 4s intervals (2-Alternative-ForcedChoice) for a set of 30 trials. Anterior-Posterior head acceleration (Head Accl AP) were investigated among the movement and non- movement intervals for the healthy adults. A strong ringing signal was observed in Head Accl AP movement interval that was absent in non-movement interval. A positive power
law trading relationship was found between Head Accl AP gain and move length standing blindfolded subjects. This could explain the observed negative power law relationship between translation length and peak acceleration threshold in previous psychophysical detection threshold studies.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Software as a service for efficient cloud computingeSAT Journals
Abstract This Research paper explores importance of Software As A Service (SaaS) for efficient cloud computing in organizations and its implications. Enterprises now a days are betting big on SaaS and integrating this service delivery model of cloud computing architecture in their IT services. SaaS applications are service centric cloud computing delivery model used as IT Infrastructure which is multi-tenant architecture used to provide rich user experience with desired set of features requested by the cloud user. This research paper also discusses the importance of SaaS application architecture, functionality, efficiency, advantages and disadvantages. Keywords: Cloud Computing, Service Delivery Models, Software as a Service, SaaS Architecture.
Cloud computing has become one of the most interesting topics in the IT world today. Cloud model of computing as a resource has changed the landscape of computing as it promises of increased greater reliability, massive scalability, and decreased costs have attracted businesses and individuals alike. It adds capabilities to Information Technology’s. Over the last few years, cloud computing has grown considerably in Information Technology. As more and more information of individuals and companies are placed in the cloud, there is a growing concern about the safety of information. Many Companies that are considered to be giants in software industry like Microsoft are joining to develop Cloud services [1]. Despite the hype about the cloud, customers are reluctant to deploy their business in the cloud. Security issues is one of the biggest concerns that has been affecting the growth of cloud computing .It adds complications with data privacy and data protection continues to affect the market. Users need to understand the risk of data breaches in the cloud environment. The paper highlights issues related to cloud computing.
A Detail Overview of Cloud Computing with its Opportunities and Obstacles in ...inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Opportunistic job sharing for mobile cloud computingijccsa
Cloud Computing is the evolution of new business era which is covered with many of technologies.These
technology are taking advantage of economies of scale and multi tenancy which are used to decrees the
cost of information technology resources. Many of the organization are eager to reduce their computing
cost through the means of virtualization. This demand of reducing the computing cost and time has led to
the innovation of Cloud Computing. Itenhanced computing through improved deployment and
infrastructure costs and processing time. Mobile computing & its applications in smart phones enable a
new, rich user experience. Due to extreme usage of limited resources in smart phones it create problems
which are battery problems, memory space and CPU. To solve this problem, we propose a dynamic mobile
cloud computing architecture framework to use global resources instead of local resources. In this
proposed framework the usefulness of job sharing workload at runtime reduces the load at the local client
and the dynamic throughput time of the job through Wi-Fi Connectivity.
Cloud computing: Advantages and challenges in the software industry and mobil...Annie Pham
Through the majority of publications and studies, this writing presents the understanding and assessment of changes in the mobile business under the impact of cloud computing technology.
IOSR Journal of Computer Engineering (IOSR-JCE) is a double blind peer reviewed International Journal that provides rapid publication (within a month) of articles in all areas of computer engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in computer technology. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
EFFECT OF POSTURAL CONTROL BIOMECHANICAL GAIN ON PSYCHOPHYSICAL DETECTION THR...ijbbjournal
A Sliding Linear Investigative Platform for Assessing Lower Limb Stability (SLIP-FALLS) was employed to study postural control biomechanical reaction to external perturbations in a short ≤16mm postural perturbation. Head acceleration were evaluated while blindfolded subjects stood on a platform that was given a short anterior perturbation presented in one of 2 sequential 4s intervals (2-Alternative-ForcedChoice) for a set of 30 trials. Anterior-Posterior head acceleration (Head Accl AP) were investigated among the movement and non- movement intervals for the healthy adults. A strong ringing signal was observed in Head Accl AP movement interval that was absent in non-movement interval. A positive power
law trading relationship was found between Head Accl AP gain and move length standing blindfolded subjects. This could explain the observed negative power law relationship between translation length and peak acceleration threshold in previous psychophysical detection threshold studies.
The Digital Object Identifier (DOI) is used for identifying intellectual property in the digital environment. The DOI is like a digital fingerprint: Each article receives a unique one at birth, and it can be used to identify the article throughout its lifespan, no matter where it goes. A DOI should be interpreted as 'digital identifier of an object' rather than 'identifier of a digital object'. A DOI can be assigned to any Object. In this workshop you will learn how to define a DOI, prepare Meta Data, and assign a DOI for a journal paper.
Cuốn sách “100 CÂU THÀNH NGỮ TIẾNG HÀN” được biên soạn nhằm giúp bạn có cái nhìn đầy đủ về thành ngữ và cách sử dụng thành ngữ khi bạn nói hoặc viết tiếng Hàn. Đôi khi các thành ngữ này có thể sử dụng độc lập nhưng cũng có khi chúng chỉ là phần nhỏ trong câu dài, tùy vào ngữ cảnh
INFORMATIZATION LEVEL ASSESSMENT FRAMEWORK AND EDUCATIONAL POLICY IMPLICATIONSijmpict
Seeing the informatization as a measure of the educational policy, we propose an informatization level
assessment framework and introduce a composite indicator – Education Informatization Index, calculated
as a weighted sum by applying the Rank-Order Centroid method for weight designation. Although it is made up of only two main categories (Educational Policy Implementation subindex and Educational Policy Creation subindex) and a total of six individual indicators, it captures well all the socio-political flows in the educational sphere in the Republic of Macedonia in the past five-year period. Namely, a slight decline of the value of the Education Informatization Index can be observed in 2013 in comparison to 2012, and in
2016 in comparison to 2015. Whereas only the value of the implementation subindex suffered in the first case, the value of the creation subindex suffered, as well, in the latter. Having in mind that policymakers can assess the improvement of a country over time, the methodology and the results can aid in making knowledgeable decisions or in establishing greater commitment to incorporating ICT into the education
system.
SIMULTANEOUS OPTIMIZATION OF STANDBY AND ACTIVE ENERGY FOR SUB-THRESHOLD CIRC...VLSICS Design
Increased downscaling of CMOS circuits with respect to feature size and threshold voltage has a result of dramatically increasing in leakage current. So, leakage power reduction is an important design issue for active and standby modes as long as the technology scaling increased. In this paper, a simultaneous active and standby energy optimization methodology is proposed for 22 nm sub-threshold CMOS circuits. In the first phase, we investigate the dual threshold voltage design for active energy per cycle minimization. A
slack based genetic algorithm is proposed to find the optimal reverse body bias assignment to set of noncritical
paths gates to ensure low active energy per cycle with the maximum allowable frequency at the optimal supply voltage. The second phase, determine the optimal reverse body bias that can be applied to all gates for standby power optimization at the optimal supply voltage determined from the first phase.
Therefore, there exist two sets of gates and two reverse body bias values for each set. The reverse body bias is switched between these two values in response to the mode of operation. Experimental results are obtained for some ISCAS-85 benchmark circuits such as 74L85, 74283, ALU74181, and 16 bit RCA. The optimized circuits show significant energy saving ranged (from 14.5% to 42.28%) and standby power
saving ranged (from 62.8% to 67%)
DYNAMIC CLASSIFICATION OF SENSITIVITY LEVELS OF DATAWAREHOUSE BASED ON USER P...ijdms
A data warehouse stores secret data about the privacy of individuals and important business activities. This makes access to this source a risk of disclosure of sensitive data. Hence the importance of implementing security measures which guarantee the data confidentiality by establishing an access control policy. In this direction, several propositions were made, but none are considered as a standard for access management to data warehouses. I n this article, we will present our approach that allows first to exploit the permissions defined in the data sources in order to help the administrator to define access permissions to the data
warehouse, and then our system will automatically generate the sensitivity level of each data warehouse
element according to the permissions granted to an object in the data warehouse.
BUSINESS PROCESSES MANAGEMENT IMPLEMENTATION IN HEALTH SECTORijmpict
Today the world is in a continuous change, where the organizations have to face the transformation and adapt to the demands. It is said that many companies need to improve and revise their processes to maintain their competitive advantages in an environment of continuous uncertainty. This is an original article where a "BPM" is implemented in the health sector that allows an organization to improve and
review its critical business processes, a project that was carried out in "Rubén Cruz Vélez Hospital" in the city of Tuluá, Colombia, where the implementation of the emergency process was carried out, with the purpose of improving the quality of processes in the health sector, an important indicator that seeks the user to be the protagonist in health security systems, to find the synergy between the Information
technologies in health organizations.
500nW A LOW POWER SWITCHED CAPACITOR BASED ACTIVE LOW PASS FILTER FOR BIOMEDI...VLSICS Design
This paper presents a low power, high gain, low area low pass filter design. The pre-processing block in this filter is the two-stage operational amplifier which is designed using the DTMOSFETS. This filter is operated at very low supply voltages of +0.2V.The PMOS input differential pairs are used to enhance the driving capability of the op-amp. input stage of the op-amp is the differential amplifier in which the inputs
are provided to the two PMOS transistors. The second stage is the gain stage in which common source amplifier is used. The design parameter values are determined which optimize an objective feature satisfying specifications or constraints. The low pass filter is designed with a cut-off frequency of 100-HZ
and a resistance of 10ohms, which occupies more layout area. In order to reduce the layout area the low pass filter is designed using the switched capacitor. The circuit is implemented with a supply voltage of 0.4V in 0.9-um technology, with a power consumption of 300nW and the simulations are performed using HSPICE simulator and layouts are designed using CUSTOM DESIGNER tool.
VLSI IMPLEMENTATION OF AREA EFFICIENT 2-PARALLEL FIR DIGITAL FILTERVLSICS Design
This paper aims to implement an area efficient 2-parallel FIR digital filter. Xilinx 14.2 is used for synthesis and simulation. Parallel filters are designed by using VHDL. Comparison among primary 2–parallel FIR digital filter and area efficient 2-parallel FIR digital filter has been done. Since adders are less weight in
term of silicon area, compare to multipliers. Therefore multipliers are replaced with adders for reducing area and speed of the filter. 2-parallel FIR filter is used in digital signal processing (DSP) application.
A PROPOSED MODEL FOR IMPROVING PERFORMANCE AND REDUCING COSTS OF IT THROUGH C...ijccsa
Information technologies are affecting the big business enterprises of todays from data processing and
transactions to achieve the goals efficiently and effectively, affecting creates new business opportunities
and towards new competitive advantage, service must be enough to match the recent trends of IT such as
cloud computing. Cloud computing technology has provided all IT services. Therefore, cloud computing
offers an alternative to adaptable with technology model current , creating reducing cost (Fixed costs and
ongoing), the proliferation of high speed Internet connections through Rent, not acquisitions, cheaper
powerful computing technology and effective performance. The public and private clouds are characterized
by flexibility, operational efficiency that reduces costs improve performance. Also cloud computing
generates business creativity and innovation resulted from collaborative ideas of users; presents cloud
infrastructure and services; paving new markets; offering security in public and private clouds; and
providing environmental impact regarding utilizing green energy technology. In this paper, the main
concentrate the cloud computing.
A Proposed Model for Improving Performance and Reducing Costs of IT Through C...neirew J
Information technologies are affecting the big business enterprises of todays from data processing and
transactions to achieve the goals efficiently and effectively, affecting creates new business opportunities
and towards new competitive advantage, service must be enough to match the recent trends of IT such as
cloud computing. Cloud computing technology has provided all IT services. Therefore, cloud computing
offers an alternative to adaptable with technology model current , creating reducing cost (Fixed costs and
ongoing), the proliferation of high speed Internet connections through Rent, not acquisitions, cheaper
powerful computing technology and effective performance. The public and private clouds are characterized
by flexibility, operational efficiency that reduces costs improve performance. Also cloud computing
generates business creativity and innovation resulted from collaborative ideas of users; presents cloud
infrastructure and services; paving new markets; offering security in public and private clouds; and
providing environmental impact regarding utilizing green energy technology. In this paper, the main
concentrate the cloud computing.
Load Balancing Tactics in Cloud Computing: A Systematic Study Raman Gill
Cloud computing has recently emerged as new paradigm in field of technology. Cloud computing is attractive to business owners and IT people. It is still in its infancy and many issues are to be addressed. This paper covers the cloud computing basics and discusses load balancing in cloud computing environment as the one of the major challenges of cloud computing. It also discusses the various existing load balancing algorithms.
Load Balancing In Cloud Computing:A ReviewIOSR Journals
Abstract: As the IT industry is growing day by day, the need of computing and storage is increasing
rapidly. The amount of data exchanged over the network is constantly increasing. Thus the process of this
increasing mass of data requires more computer equipment to meet the various needs of the organizations.
To better capitalize their investment, the over-equipped organizations open their infrastructures to others by
exploiting the Internet and other important technologies such as virtualization by creating a new computing
model: the cloud computing. Cloud computing is one of the significant milestones in recent times in the
history of computers. The basic concept of cloud computing is to provide a platform for sharing of resources
which includes software and infrastructure with the help of virtualization. This paper presents a brief review
of cloud computing. The main emphasize of this paper is on the load balancing technique in cloud
computing.
Keywords: Cloud Computing, Load Balancing, Dynamic Load Balancing, Virtualization, Data Center.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Addressing the cloud computing security menaceeSAT Journals
Abstract Cloud Computing is fast gaining popularity today with its scalable, flexible and on-demand service provision. It brings cost saving and agility to organization with pay-as-you-go approach. Abundant resources are available and the user has a huge range to select from. Cloud facilitates virtualization, simplification, automation and accelerated delivery of application and services for a sustainable business advantage. As much as the technological benefit, cloud computing also has security issues. Security in cloud computing is essential for providing quality of service. In this paper we address security issues which concern cloud computing environment today. We analyze Cloud Computing and security menace it faces due to different threats. Index Terms: Cloud Computing, Cloud Service Provider (CSP), Cloud Security, Cloud User, SaaS, PaaS, IaaS, StaaS
An Analysis on Business Value of Cloud ComputingIOSR Journals
Abstract: The high costs incurred in multiple supplier/Buyer transaction forms the basis for the introduction of
a high-value agent service. This type of agent-based model can lower the cost for both buyers and sellers,
including monetary, mental and physical expenditure. Cloud computing is not just about cost. It can provide a
platform for a business to achieve its ambitions of having an “inclusive” IT system that covers entire supply
chain and its customers, enabling and generating business growth more effectively.
Keywords: Cloud computing, inclusive, Supply chain
An Efficient MDC based Set Partitioned Embedded Block Image CodingDr. Amarjeet Singh
In this paper, fast, efficient, simple and widely used
Set Partitioned Embedded bloCK based coding is done on
Multiple Descriptions of transformed image. The maximum
potential of this type of coding can be exploited with discrete
wavelet transform (DWT) of images. Two correlated
descriptions are generated from a wavelet transformed image
to ensure meaningful transmission of the image over noise
prone wireless channels. These correlated descriptions are
encoded by set partitioning technique through SPECK coders
and transmitted over wireless channels. Quality of
reconstructed image at the decoder side depends upon the
number of descriptions received. More the number of
descriptions received at output side, more enhance the quality
of reconstructed image. However, if any of the multiple
description is lost, the receive can estimate it exploiting the
correlation between the descriptions. The simulations
performed on an image on MATLAB gives decent
performance and results even after half of the descriptions is
lost in transmission.
The Riisk and Challllenges off Clloud ComputtiingIJERA Editor
Cloud computing is a computing technology aiming to share storage, computation, and services transparently
among a massive users. Current cloud computing systems pose serious limitation to protecting the confidentiality
of user data. Since the data share and stored is presented in unencrypted forms to remote machines owned and
operated by third party service providers despite it sensitivity (example contact address, mails), the risks of
disclosing user confidential data by service providers may be quite high and the risk of attacking cloud storage
by third party is also increasing. The purpose of this study is to review researches done on this technology,
identify the security risk and explore some techniques for protecting users‟ data from attackers in the cloud.
Cloud Computing Applications and Benefits for Small Businesses .docxclarebernice
Cloud Computing: Applications and Benefits for Small Businesses
Abstract
Cloud computing is one of the most talked about topics in the world of technology and entrepreneurship. Until now it has never been so easy for people, especially small business owner’s, to have the tools and resources readily available just one click away and at the fraction of the cost of the typical investment a few years back. Cloud computing offers cost-effective solutions at various levels that can be customize to meet the needs of anyone. Cloud computing can be thought of as a new found technology and this paper defines the concept of the cloud and provides a brief background of where most business are in regards to the use of this technology. This is then continued by describing the types of cloud currently available and potential use. The paper then presents a short but important section of cloud security issues and challenges. Finally, the paper discusses the benefits each of the different levels of cloud computing can provide small business.
Introduction
The use of cloud computing has grown exponentially in the last decade, according to Weins (2015) eight-four percent of enterprises that make use of such services in one way or another. Could computing by definition is internet-based computing, where by shared resources, software and information are provided to the end user as metered services much like a utility does(Bradley, 2014). For businesses in many cases could computing is use for IT solution purposes as it can provide IT-related capabilities as a service using internet technologies.
With the fast pace of today’s market businesses need to provide fast and reliable services to their customers in order to remain competitive. The concept of could computing is not something new as it uses existing technology and processes; however it can be consider new in sense that using these technologies has revolutionized the manner in which we host and cater services to customers. Startup companies and small businesses can take advantage of could computing to reduce spending on IT, be more adept to changes in the market, change scale and lower risk and cost.
Given the structural complexity of larger organization, Alijani (2014) states that it is essential for cloud computing to deliver rear value rather than serve as a platform for simple task. The need to deliver rear value is just as important for small businesses. For small businesses value is important but it’s their customer relationship and public image, flexibility and continuity. As such small business owners need to consider the benefits, drawback s and the effect of cloud computing on their organization before taking the decision to implement.
Types of cloud computing
There are three categories or levels cloud computing, this are: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).
Infrastructure as a Service (I ...
International Journal of Computer Science & Information Technology (IJCSIT) ijcsit
Recently, organizations have shown more interest in cloud computing because of the many advantages they
provide (cost savings, storage capacity, scalability, and speed of loading). Enterprise resource planning
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CLOUD COMPUTING: A NEW VISION OF THE DISTRIBUTED SYSTEM cscpconf
Cloud computing is a new emerging system which offers information technologies via Internet. Clients use services they need when they need and at the place they want and pay only for what they have consumed. So, cloud computing offers many advantages especially for business. A deep study and understanding of this emerging system and the inherent components help a lot in identifying what should we do in order to improve its performance. In this work, we present first cloud computing and its components then we describe an idea which attempts to optimize the management of cloud computing system that are composed of many data centers.
EXPLORATION OF INSTITUTIONAL CHALLENGES FOR ADOPTING CLOUD COMPUTING IN E-LEA...IAEME Publication
Cloud computing is a new on-demand delivery of software and hardware resources to consumers over the internet. It has been proposed as a preferred solution for future systems of education. Furthermore, using cloud computing grows rapidly on various applications in different education fields such as E-learning. It has become a critical point on any institutional deploying, creating a remote educations system and designing of the perfect web-based learning environment. Cloud computing is distinguished by providing large storage resources with cost savings and faster data transfer. Nowadays, data of several social networks (photos, music, videos etc.) are stored in their own purchased cloud. As a consequence of using these applications, cloud computing is indirectly used is our life. Therefore, cloud computing (or cloud technology). In other words, the services that one can easily access these applications in electronic devices is called cloud computing.
E-learning systems basically require many software and hardware resources to implement education tasks effectively. Therefore, adopting available cloud-based application can make the tasks more affordable. Cloud offers the opportunity to work from anywhere and combines software, hardware and hosting services in a single structure with a technology that collects solutions for organizations. To achieve this goal, it facilitates the operation by enabling customers to reach the same data simultaneously. This article, thus, investigates barriers to implement cloud e-learning adoption in Iraqi education institutions.
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mention some solutions and countermeasures on these security problems
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BENEFITS AND CHALLENGES OF THE ADOPTION OF CLOUD COMPUTING IN BUSINESS
1. International Journal on Cloud Computing: Services and Architecture (IJCCSA) Vol. 6, No. 6, December 2016
DOI: 10.5121/ijccsa.2016.6601 1
BENEFITS AND CHALLENGES OF THE ADOPTION OF
CLOUD COMPUTING IN BUSINESS
Colin Ting Si Xue1
, Felicia Tiong Wee Xin2
1
School of Computing and Technology
Asia Pacific University of Technology and Innovation
Technology Park Malaysia
57000 Kuala Lumpur, Malaysia.
2
Department of Health Science
International Medical University
No. 126, Jalan Jalil Perkasa 19, Bukit Jalil
57000 Kuala Lumpur, Malaysia.
ABSTRACT
The loss of business and downturn of economics almost occur every day. Thus technology is needed in
every organization. Cloud computing has played a major role in solving the inefficiencies problem in
organizations and increase the growth of business thus help the organizations to stay competitive. It is
required to improve and automate the traditional ways of doing business. Cloud computing has been
considered as an innovative way to improve business. Overall, cloud computing enables the organizations
to manage their business efficiently. Unnecessary procedural, administrative, hardware and software costs
in organizations expenses are avoided using cloud computing. Although cloud computing can provide
advantages but it does not mean that there are no drawbacks. Security has become the major concern in
cloud and cloud attacks too. Business organizations need to be alert against the attacks to their cloud
storage. Benefits and drawbacks of cloud computing in business will be explored in this paper. Some
solutions also provided in this paper to overcome the drawbacks. The method has been used is secondary
research, that is collecting data from published journal papers and conference papers.
.
KEYWORDS
Benefits, Challenges, Cloud Computing, Deployment Models, Service Models.
1. INTRODUCTION
Cloud Computing is quickly becoming one of the most popular and promising technologies. It
offers variety of opportunities that help the organizations to improve their business and use
technology more efficiently. Many organizations have started adopting cloud computing in their
business. It is difficult for the organizations to survive in the traditional ways and they are unable
to compete with their competitors. Especially in this competitive environment, respond quickly to
business demands is necessary. The organizations are necessary to implement strategic ideas to
gain competitive advantages. Cloud computing is an enhanced technology and become a vital
technology to run business. It acts as an excellent technological tool that helps the organizations
to stay competitive as it can be considered as an innovative way to increase business value. It
enables the users and consumers to integrate and combine many different services together that
increases the creativity and productivity. Cloud computing has successfully gained the interested
from organizations because it offers a wide range of solutions and advantages to business such as
2. International Journal on Cloud Computing: Services and Architecture (IJCCSA) Vol. 6, No. 6, December 2016
2
increase flexibility, scalability, agility, reduces costs and higher efficiencies [20,36,64]. Thus
more and more organizations start migrating their services and applications to cloud. Cloud
computing has been used and applied in organizations and it helps to gain revenue every year
[1,38]. Cloud services market revenues are expected to reach at 66 billion dollars in 2016 and its
growing rate will be around 30% per annual [7,94]. The fast growing rate of cloud computing is
unavoidable. As the technology is getting more advanced, cloud computing raises some concerns
in security, cloud attacks and privacy. The organizations should have proper protection on cloud
services to prevent their data being stolen. The objectives of this paper are to explore the benefits
of cloud computing, identify the threats to cloud computing and determine the solutions to
overcome threats in business.
At the beginning of this paper, it gives an overview of cloud computing. It discusses different
types of definitions from different experts on cloud computing. Besides, the cloud computing
service models and deployment will be provided to show the characteristics of different models.
The reasons and challenges of the adoption of cloud computing in business will be analysed.
Suggested solutions to overcome the challenges will be provided. Finally, future research has
been included in the conclusion.
2. CLOUD OVERVIEW
There are some debates on the definition of cloud computing. Confusing problem like the lack of
agreed-upon definitions, always appeared in the cloud, as different experts provide different
definitions. Different types of services will be provided by cloud computing to the subscribers
through the Internet. Cloud computing is something that all applications and services moved into
“cloud”. The word “cloud” can be defined as remote environment from Information Technology
perspective [55]. However, [7] defined cloud as a large pool where computing resources are
stored. Usually, it provides a single, simple interface for the users to use and hide the architecture.
Figure 1 illustrates the architecture of cloud computing.
Figure 1. Cloud Computing Architecture [7].
In cloud computing architecture, there are four main layers. The first layer, fabric, contains all
physical, computational devices and hardware resources such as network bandwidths, computing
units, storage system etc. [35]. The second layer, unified resource, contains virtualized resources
which act as integrated resources. The physical machines have been encapsulated in order to act
as integrated resources for the end users [63]. In third layer, which is the platform layer, contains
new resources such as specialized tools, middleware and services. The main purpose of this layer
is to reduce the burden of deploying applications directly into virtual machine container [96]. The
development environment is provided for the developers to develop applications. Finally, the top
layer, application, contains the applications that run and execute in the cloud [35]. According to
[1], the users can use cloud services provided by cloud providers without having any operational
3. International Journal on Cloud Computing: Services and Architecture (IJCCSA) Vol. 6, No. 6, December 2016
3
knowledge. The users do not need any special requirements or devices to access these services.
The services provided by cloud are 24/7. Sometimes, it can also be used to trace when the
computing resources and applications are used. [30] found that cloud computing is able to
provide shared resources, applications and services that meet changing business needs. Cloud
computing also provides a platform that enables the developers to develop and deploy directly to
the cloud. They do not need to worry about how many resources they need, system maintenance
and upgrade as these are done by the providers.
2.1. Cloud Computing Service Models
Cloud computing providers offer different types of services to their users based on the main three
types of service models. Figure 2 shows the three main types of service models in cloud
computing.
Figure 2: Cloud Computing Service Model [34].
2.1.1. Service as a Service (SaaS)
Service providers will install their software applications which operated by them for the users to
use as a service. The users can rent it on a subscription or pay-per use model [17]. The users can
access the software applications without the concerns of installation and maintenance. They also
do not need to know the infrastructure and platform where the applications are running [43,51].
Compared to the traditional software, SaaS does not require own software and hardware
resources. SaaS is popular due to its scalability, compatibility, accessible worldwide and the users
do not need to do/worry about scaling, configuration and updates [51]. However, users do not
have any control on the components, security and application customization [58]. Examples of
SaaS are Google Docs, Microsoft Office 365, salesforce.com etc. [96].
2.1.2. Platform as a Service (PaaS)
PaaS plays a major role in cloud as development environment will be provided by service
providers for application developers to implement and maintain their applications [27]. A
platform, including software, hardware, operating system, server, development tool and database
will be provided by service providers [17]. Users do not need to know how much processing unit,
memory, storage they need for their applications. PaaS provides a full “Software Lifecycle” since
it allows the application developers to directly implement on the cloud. The difference between
PaaS and SaaS is the users to develop the applications on cloud or host the completed
applications on PaaS while the users can only host the completed applications on SaaS [68].
Some examples of PaaS are Amazon Web Services, Google App Engine and Microsoft Azure
[5].
4. International Journal on Cloud Computing: Services and Architecture (IJCCSA) Vol. 6, No. 6, December 2016
4
2.1.3. Infrastructure as a Service (IaaS)
The bottom layer of service model is IaaS. The main concept of IaaS is virtualization. IaaS
provides the infrastructure for the applications to run. IaaS provides the necessary computational
resources and infrastructure such as storage, processing unit, networks etc. [42]. [51] said that
IaaS is like located in the middle of the other two services as it acts as a physical or a virtual
machine to support users’ applications. It allows users to deploy and run both operating systems
and applications. The main benefit is that users do not take any responsibility on deployment,
administration and maintenance [11]. An example of IaaS is Amazon EC2 [37].
2.2. Deployment Models
Cloud computing has been classified as four types of deployment models: public cloud, private
cloud, community cloud and hybrid cloud [87]. Each of the model has its own scope of services
offered to the users. The ways of Cloud Computing deployment will be based on different factors,
such as customization capabilities, cloud services sharing, security requirements and location the
services hosted [90]. Figure 3 shows the different types of cloud deployment models.
Figure 3. Cloud Deployment Models [4].
In public cloud, the services are offered to everyone in general public over Internet. These
services are provided and shared with other organizations by third party service providers.
Usually the service providers have their own policy, value, costing and charging model. [90]
found that the services delivered are manageable and consistent available. However, the users are
treated as untrustworthy. Researchers found that privacy and security are the issues that always
discussed in public cloud [3,4]. Examples of public cloud services are email services and photo
storage services.
Private cloud service is for organization usage. Compared to public cloud, private cloud has a
higher security because it is only accessible by the trusted users in the organization or granted
third parties. An example of using private cloud in an organization is to share customer data to
their other branches [81]. This type of cloud service is less risky, higher security, higher energy
efficiency, more reliable, cost reduction and lower complexity [32,96]. Research has been done to
prove this by putting an organization in the most precarious situation [60]. However, an
organization needs to spend more cost on purchasing the software and equipment to have their
own cloud.
5. International Journal on Cloud Computing: Services and Architecture (IJCCSA) Vol. 6, No. 6, December 2016
5
Community cloud located between public and private cloud. There are not much different from
private cloud. The resources are shared among the organizations that have similar missions and
requirements [25]. The services may be managed by third parties or organization itself.
According to [81], the setup cost is cheaper than a private cloud because they are shared among
the organizations. Besides, it offers a higher level of security and privacy. One of the drawbacks
is the data storage needs to be shared among others. An example of community cloud service is
the educational cloud that can be shared among the universities around the world for research
purpose [4].
Hybrid cloud is the composition of two or more clouds, either public, private or community [75].
The clouds will use the physical hardware and server instances together to provide a service. This
type of cloud service offers the same advantages of public and private cloud. In hybrid cloud, it is
easier to handle data security concerns by saving the organizations’ sensitive data in private
storage. Usually this type of cloud service is used for backup purpose [83]. The organization can
host a critical application on private cloud and public cloud for less security concern [31].
3. BENEFITS OF CLOUD COMPUTING IN BUSINESS
Cloud computing tends to be different from the other computing concepts. Basically, it supports
an interactive and user friendly web applications. Different people will have their own
perspective. Some people will consider cloud computing as a virtualized computer resources,
dynamic development and software deployment. In today’s world, cloud computing has played
an important role especially in business. [66] found that cloud computing as an innovative
technology helps the organization to stay competitive among others. It is able to bring a various
benefit to business. Cloud computing is able to provide improved new capabilities which the
traditional IT solution cannot provide.
3.1. Flexibility
Most of the organizations choose to adopt cloud computing as it increases the business flexibility.
It allows every employee to be more flexible in or out of their workplace. Employees who are on
business trip can access the data as long as they have Internet connection through any kind of
device [18,54]. Various services provided by cloud computing help the organizations handle the
business demand. Cloud computing allows the employees to share documents and files over the
Internet simultaneously. Thus, every employee can get the updated version. This gives an added
advantage especially for an organization's employees who often work outside of the organization
and now they can easily access to their data [44]. Thus the business owners do not need to be in
one location, but now can spend their time on other business in another location. Besides, due to
the data and files are stored virtually on the Internet, it allows the employees to access the same
resources simultaneously.
3.2. Cost Reduction
According to [66] and [88], the main reason that organizations adopting cloud computing in their
business is it helps in cost reduction. Organizations are enamoured by the chance of cost
reduction as the cloud service providers provide “in-house” provision of these services [22,23].
Besides, the organizations pay only for what they use. It means the organizations only pay for the
services that they use when they access cloud services. Figure 4 shows the reasons of the
organization to adopt cloud computing.
6. International Journal on Cloud Computing: Services and Architecture (IJCCSA) Vol. 6, No. 6, December 2016
6
Figure 4: Reasons for Adopting Cloud Computing [66].
The main reason that motivates the organization to adopt cloud computing is cost reduction
which is 45.5%. [12] and [76] stated that cloud computing has helped the organizations to save a
huge cost mainly due to its subscription models. The resources on cloud computing can be
installed and deployed very quickly, especially SaaS, due to everything is done by the providers
[71]. Usually these services are managed, patched and upgraded by the providers. When the
responsibilities of maintaining these services have been transferred to the providers, the
organizations do not need to worry about the IT problems. Besides, the technical support is
usually done by the providers and thus reduces the burden on IT staffs [14]. This can help the
organizations to prevent any staff training cost and manpower.
3.3. Automatic Software/Hardware Upgrades
According to [61], when an IT solution has been implemented in organizations, it creates a
problem that is unable to have an appropriate financing due to the high cost of purchasing and
maintaining hardware and software. This will give a negative effect. These problems can be
solved by adopting cloud computing. The organizations can shift their capital expenses to
operating expenses. It does not only reduce the cost, but it helps to build a better relationship,
remain in technological advances, increase the profit, provide standardized and low cost services
to customers [1]. This encourages more organizations willing to purchase Supply Chain
Management and Customer Relationship Management applications because of economical
subscription fees. The employees are able to access to these applications immediately. Due to
there is no any capital investments for immediate access, it results in a faster time to the market.
Besides, cost reduction in these will also lower the entry barrier [28,29]. This will increase the
opportunities and encourage more organizations, especially in far behind IT revolution countries
to start their business.
7. International Journal on Cloud Computing: Services and Architecture (IJCCSA) Vol. 6, No. 6, December 2016
7
3.4. Agility
In today, such a highly competitive business environment, it is necessary to stay competitive. [36]
highlighted that one of the ways to make organization different from others is the ability and time
used to respond to customers’ fast changing needs. [84] stated that cloud computing can achieve
this in a more effective manner. Due to the availability of the Internet, cloud computing is around
the clock. This helps the organizations to deliver the services in shortest time, thus it can be used
as a competitive tool for rapid development [71].
Cloud computing increases agility by offering three types of low-level administrations from cloud
providers [16]:
• System Infrastructure – machines and spare part maintenances
• Backup Policy – backup management
• Single Application – software management (upgrade software / application support)
Cloud computing helps to increase the agility that is able to adapt quickly to respond the changes
in a business environment. Compared to the cloud server, it will just take a minute to procure and
provision while a normal physical server will take days.
3.5. Scalability
Another benefit of cloud computing is it allows the users to adjust the resources based on the
changes of business needs. This can be done by expanding the computing infrastructure as most
of the cloud computing interface is user-friendly [21]. [10] said the traditional IT solutions do not
support scalability and it brings lots of inconvenience to the organizations. The organizations are
refusing to maintain the resources during the peak time because they are not being used in normal
time. This might cause the loss of customers due to their dissatisfaction. Due to the scalability of
services in the cloud, it helps to solve the problems and increase customer satisfaction. Cloud
computing is able to make the resources available quickly, which removes the capacity planning
needs. Cloud computing is an added advantage especially for smaller organizations because they
can expand the resources when necessary [52]. Besides, cloud computing allows the users to
analyse a huge amount of data in just a few minutes due to its processing power [24]. This has
successfully attracted the business analysts to analyse market and predict the customers’
behaviour and buying habits.
4. RISKS OF CLOUD COMPUTING IN BUSINESS
Cloud computing, which some people claimed as a new technology, has helped a lot of
organizations in doing business. Although cloud computing brings some benefits to the
organizations as aforementioned, there are some shortcomings for decision makers that need to be
taken into consideration [6]. Cloud network traffic will be pernicious to the performance of cloud.
When cloud capacity is more than 80% occupied, the computers will be irresponsible [77]. There
is the chance of crashing between servers and computers. This will lead to the loss of valuable
data such as customers’ data, organizations’ sales report etc. Cloud attack is also a major issue in
cloud computing. Cloud computing is a place for the users to host their web services such as web
hosting and cloud storage. This has attracted the hackers to steal the business data, such as daily
sales, profit reports, financial reports etc. [33]. [69] highlighted the types of cloud attacks such as
malware injection attack, wrapping attack, SQL injection, authentication attack and Denial of
Service.
8. International Journal on Cloud Computing: Services and Architecture (IJCCSA) Vol. 6, No. 6, December 2016
8
4.1. Data Stealing
The number of users and organizations connected to the Internet is increasing. This also increases
the probability of probing and attacking using viruses, worms and cyber terrorists. An incident
has happened in one of the service providers, Google Inc., which their servers have been hacked
[13]. Figure 5 illustrates the percentage of key concerns issues in cloud computing.
Figure 5: Cloud Computing Adoption Issues [56].
Among the issues of adopting cloud computing in business, security occupied the highest
percentage that is 66%. A survey conducted by International Data Corporation (IDC) shows that
security is the primary challenge [47]. The reason is there is the involvement of third parties to
provide services. [50] also stated that security is the most concern threat and this has brought the
pressure to cloud service providers in order to provide a better protection for their clients’ stored
data. The security issue includes networks, operating system, databases, transaction management
etc. Data stealing has become a major issue in cloud computing. Some of the service providers do
not have their own server, they acquire the services from the other providers since they are more
cost effective and flexible for operation. This increases the chances of data stolen from external
servers [2]. As cloud computing has provided powerful processing capabilities and huge amount
of storage for the users or organizations, this encourages organizations to move to cloud so they
do not need to spend money on purchasing servers. According to [86] report, around 37% of
global companies involved in a malicious attack. One of the companies, Zappos, became a target
for cyber theft. There are around 24 million of their users’ account details being stolen such as
their personal information, credit card information and also encrypted password [86].
4.2. Malware Injection Attack
The hackers will try to damage the applications and websites hosted on the cloud. Usually
hackers will find the vulnerabilities of a web application or website and make some changes to it
thus change the normal execution. Hackers will program a malicious application and use the
virtual machine to inject the malware into the cloud services. Through this the hackers can do
whatever they want such as data theft or eavesdropping [86]. Among different types of malware
injections, the most common form is SQL injection [19]. The concept of SQL injection is to
change the query structure. The hackers will use the improper validation of data to take advantage
[69,70]. Usually their target is SQL servers or databases. Besides, hackers will try to inject a
malicious code, especially to web server to bypass the login stage and gain access to the
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9
databases. They will try to modify database data, retrieve organizations’ data and even take the
control of the entire web server. The techniques or malicious scripts that hackers will use are
JavaScript, HTML, VBScript, ActiveX and Flash [85].
4.3. Wrapping Attack
Wrapping attack which uses Extensible Mark-up Language (XML) signature element in order to
weaken the web servers’ validation requests [93]. When a user requests for a service, it is
interacted using Simple Object Access Protocol (SOAP) and submitted in XML format. This type
of attack usually occurs during the translation of SOAP messages in Transport Layer Service
(TLS) layer between web server and valid user [41]. The message body will be duplicated and
send to server as a valid user. The hacker will copy the user’s account login details. During the
login session, the hackers will inject a spurious element in the message structure. They will
modify the original content with malicious code. After that, the message is sent to servers. The
server will approve the message as the body is unchanged. As a result, the hackers will be able to
access to the server resources to unauthorized access [79].
4.4. Authentication Attack
Authentication attack is also a type of attack that occurs in a cloud environment. [78] and [95]
stated that authentication is always a weak point in web server and always become a target to
attack especially the one with ineffective encryption system. Every service provider will use three
types of authentication such as something a person knows, has, are [49]. During the
authentication process, the hackers try to access the user’s credential and confidential
information. If they succeed, the hackers are able to access users’ confidential data,
organizations’ sensitive information etc.
4.5. Denial of Service (DoS) Attack
Denial of Service (DoS), which also called as Distributed Denial of Service (DDoS) or flooding
attack has become one of the most concern issue in cloud computing and a major trouble to the
services availability. Although the network security experts have been putting efforts for decades
to solve this attack, DoS attack continues to grow and have more impacts recently [92]. [49] and
[89] highlighted the types of DoS attack such as smurf attack, SYN Flood attack, PING of Death
attack, Tear Drop and IP Spoofing attack. The attackers can launch different types of DoS attack,
including resource-focused (network, memory, CPU etc.) and application-focused (web
applications, database services etc.) [92]. They make the services on cloud inaccessible,
intolerably slow or unavailable, thus degrade the quality of services and the network connectivity
[65]. One of the ways that usually attackers will do is to send large amount of data packets. The
main purpose is to overload the servers’ capacity and bandwidth and make the services
unavailable [8]. According to [39], DoS attacks can occur at any layer in network. For example,
DoS attack at network level to make the server unreachable, SYN Flood attack at the transport
layer to get the server busy and send fake requests to the application layer to consume the servers’
memory [53].
4.6. Data Privacy
In cloud computing, data will be accessed in unencrypted form by different organizations.
According to [91], data privacy risks can be illustrated from different perspectives such as
insufficient user control and regulatory compliance. Some organizations will upload files to cloud
for sharing purposes. However, this would lead to confidentiality and data privacy issues such as
protection of personal or organizations’ business information. Sometimes, the location of data
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10
stored will lead to privacy obligations. Failure of security access rights across multiple domain
will lead to data leakage. Besides the percentage of exposures and vulnerabilities will arise, thus
insider user threats will be made [46]. Not much controls provided by providers on the data and
information stored in the cloud. For example, in SaaS environment, [67] stated that the service
providers are responsible for data storage which control and visibility is finite. There is an
increase in threat of theft. Since all cloud processes are done by computers, the users do not know
where their data stored and what have been done to it. The storage servers are distributed in
different location around the world [26]. Sometimes it is difficult to guarantee that the data are
compliance with the legislation since the cloud computing are all around the world and will have
different legislations in different places. Thus placing data in the cloud may affect privacy and
obligation [57].
5. SUGGESTED SOLUTIONS TO OVERCOME RISKS
Cloud computing brings conveniences to the organizations, but there are some risks threatening
organizations too. In order to provide a better quality of services, the providers have
responsibilities to ensure that cloud environment is highly secured. Providers have to make
enhancement on security to gain users’ trust. There are some solutions to enhance the security of
cloud.
5.1. Data Stealing Solution
Data stealing is usually widely occurred. The attackers will try to steal users’ account credentials.
To prevent this, a special and distinct number should be generated at login session [9]. Every time
the session ends, the users are required to send an email about the usage and duration together
with the unique number for the next login. Through this, the users will be more aware of the
usage and unique number to be used for every login. For example, in Amazon EC2 cloud service,
a unique number is used to verify the users [59]. For retail organizations, it requires the users to
register as a user first before purchasing something. The information includes credit card details.
[45] stated that it is necessary to enhance registration system to reduce the chance of customers’
data stolen. This can be done by applying credit card fraud monitoring system. Security policy,
rules and regulations can reduce the risks of improper use of cloud computational power.
5.2. Malware Attack Solution
In cloud computing, the users’ requests are processed based on authorization and authentication
and these will be done between web servers and web browsers. Hackers will try to inject harmful
code to the cloud environment. To prevent this, cloud service providers need to store the
information about the Operating System (OS) the users use during the first time registration.
Since cloud computing is a fully independent OS platform, cross checking will be done before
launching an instance on a cloud. This is to check whether the OS information stored on the cloud
is matched with the instance requested from [40].
5.3. Wrapping Attack Solution
Wrapping attack can be prevented by enhancing the security between the communication with the
web server and a web browser. This can be done by adding an extra bit which called reductant
STAMP bit contains signature value to the SOAP message [15, 72]. This type of bit is used to
prevent the value being changed by the attackers. If there is any interfere during the
communication, the STAMP bit will be toggled and new signature value will be produced in
browser and is sent to the server.
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5.4. Authentication Attack Solution
Authentication is always a weak point, especially in a cloud environment. [82] and [95]
highlighted the ways to enhance authentication on cloud. They said it is necessary to use a
stronger authentication and ID management for both cloud providers and users. One of the ways
is to use Key Management for both sides. Server logs should be used to record the access time.
Besides, the account should be automatically locked after several unsuccessful login attempts.
5.5. Denial of Service Attack Solution
The solution to overcome this attack is still improving. One common way is to enhance the
security of networks [62]. Several approaches such as filter-based, firewall-based and signature
based can be used to eliminate the attacks [65, 73, and 79]. Filter-based approach can be used to
detect a low rate of attacks like an increase and attack in traffic rate and network. Firewall-based
approach is to use a firewall in order to enhance the strategy. It can be used to allow or deny
protocol access. For example, if an attack is coming from an unusual IP address, the firewall-
based approach will try to drop the unauthorized coming traffic. Signature-based approach is used
to compare the signature database. In the network, the traffic is monitored with the signature
pattern. If the signature does not match each other, it will block the attacks. [74] said the packets
amount sent to the server by attackers is “multiplied by a factor that is similar to the number of
hosts behind the router”. They suggested that by disabling IP broadcast can reduce the chances of
DoS attacks. Another way is applying the security patches. Operating System (OS) and
applications can be the victims of DoS attack. To prevent from the attacks, the OS should have
installed with the latest security patches. For example, when there is a SYN Flood attack, the
servers should have software patches to detect and avoid it [49].
6. CONCLUSION AND FUTURE RESEARCH
Cloud computing has become one of the transformational technologies that is tremendously
important to improve ways of doing business. It has been proved to be a valuable asset for
organizations to stay competitive. Cloud computing has been defined from different perspectives
by different experts and it is difficult to discern exactly how cloud computing is constituted. As
discussed in this paper, cloud computing brings conveniences and benefits to the organizations
such as business flexibility, cost reduction, automatic hardware and software upgrade, agility and
scalability. The main benefit is it helps to reduce the unnecessary costs such as purchasing and
maintaining hardware and software. Besides, the workers working in IT are reduced. However,
like all other technologies, there are some issues with cloud computing. The biggest concern,
issue is security, especially data stealing. More organizations will be willing to adopt cloud
computing only if the issues are solved. Some solutions have been suggested to overcome these
issues. The safety of cloud computing service should be placed at the front. Cloud service
providers should provide regulatory compliances that the users may concern about. Through the
compliances, it helps the users to be certified securely. Besides, security, policies should be
provided with details regarding access control, risk management, system backup and recovery.
Due to the time limitation, in the future, few case studies will be chosen and discussed on how
organizations gained the benefits of cloud computing. Theoretical framework will be also used to
discuss how organizations have applied framework. Different types of attacks always occur in a
cloud environment, thus a strong theoretical concept and generalized architecture especially for
security will be proposed. This is a crucial step required for the cloud service provider to handle
the cyber-attack.
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12
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Authors
Colin Ting Si Xue was born in Sibu, Sarawak, Malaysia. He received the B.Sc. degree in
Software Engineering with first class honors from Asia Pacific University of Technology
and Innovation. Currently pursuing M.Sc. in Technology Management at Asia Pacific
University of Technology and Innovation. He has published several journals papers in the
area of change leadership, cloud computing and human resource management. His interested
research areas are business management, change management, cloud computing, database,
knowledge management and leadership.
Felicia Tiong Wee Xin was born in Kapit, Sarawak, Malaysia. She completed her
foundation at First City University College (formerly called KBU) in Kuala Lumpur.
Currently pursuing her Bachelo r at International Medical University in Kuala Lumpur. Her
interested research areas are pediatrics and
informatics.