Cloud Systems and Applications: Literature Review

Running head: CLOUD SYSTEMS AND APPLICATIONS
Cloud Systems and Applications: Literature Review
Name of the Student
Name of the University
Author’s Note

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CLOUD SYSTEMS AND APPLICATIONS
Table of Contents
Major service model of cloud computing and cloud computing security best practices...........2
Comparing characteristics of four main cloud deployment models and their adoption in
business organization.................................................................................................................5
Hybrid cloud considered for an organization.............................................................................7
Main security and privacy threats related to cloud computing..................................................8
Risks and threats for the cloud deployment models -............................................................8
Security solution and standards in cloud environment -........................................................9
Security tools for cloud computing......................................................................................10
References................................................................................................................................11

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CLOUD SYSTEMS AND APPLICATIONS
Major service model of cloud computing and cloud computing security best
practices
There are different service models and they are divided into IaaS, PaaS and SaaS and
they are defined below:
Infrastructure as a Service (IaaS) – Infrastructure as a Service is used as a self-
service model and helps in remote management of large IT infrastructure such as data
centres. It can provide virtualisation of the computer resources using the internet and hosted
by third party service providers such as Azure, Google and Amazon web service. The
organization can use the service instead of purchasing hardware and payment is made for the
resource used (Almorsy, Grundy and Müller 2016). With the model the company can add or
modify the It infrastructure based on their needs and it is also preferred by many of the
organization since it is more familiar than the other two model. The model is capable of
delivering strict security requirement and regulations for the business models.
Figure 1: IaaS Architecture
(Source: Cloudoye Blog. 2019)

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CLOUD SYSTEMS AND APPLICATIONS
Platform as a service (PaaS) – It allows the organization to run, build and managing
applications without the need to manage applications without the need of IT infrastructure. It
can be used for faster and easier deployment and deploying and testing different types of
applications (Manuel 2015). The development team can reduce the time of development as
they do not need to worry about the IT infrastructure activities for example backup and
storage, provisioning servers and thus they can concentrate on developing the codes and
creating applications. The management overhead cost can be reduced and reduces the cost.
The use of PaaS makes it easy to scale and innovate the service on demand.
Figure 2: PaaS Architecture
(Source: Milesweb.com. 2019)
Software as a Service (SaaS) – It can be deployed for replacing the traditional on
device software which are licensed on the basis of subscription. It can be hosted in the cloud
centrally and thus can be accessed directly using the web browser eliminating the need of