Webb's Stores Cloud Computing Migration

This assignment examines the challenges faced by Webb's Stores in managing their database and explores the benefits of migrating to cloud computing. It delves into different cloud service models (IaaS, PaaS) and argues that Infrastructure as a Service (IaaS) is the most suitable option for Webb's Stores. The document emphasizes the importance of security in cloud migration and provides recommendations for implementing IaaS effectively.

Cloud Computing
Name of the Student: Gagandeep Kaur
Student ID: 11638538
Student Email:

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Executive Summary
The objective of this report is to understand whether Webb’s Stores will take IaaS approach
or PaaS approach for their shifting of databases into cloud. Webb’s Stores has its data
centers in Melbourne, Brisbane and Sydney. The data centers are linked by a fiber based
Wide Area Network and the data is duplicated between the three data centers daily. They
have a copy database in Auckland as well. However, recently Webb’s Stores are having
problem in copying their data to Auckland center for the reason of latency. Therefore, they
are considering to shift their databases into cloud computing approaches. The following
report helps to understand which approach would be better for Webb’s Store.
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Table of Contents
Part 1: PowerPoint briefing for the Directors of Webb’s Stores...................................3
1.1 Title Slide............................................................................................................ 3
1.2 Cloud Computing, its key concepts and how it is benefitted to Webb’s Stores..3
1.3 AWS or Azure......................................................................................................5
1.4 Cloud Architectures............................................................................................6
Part 2: PowerPoint briefing of SaaS for Webb’s Directors............................................9
2.1 Title Slide............................................................................................................ 9
2.2 Advantages of SaaS.............................................................................................9
1.3 Disadvantages of SaaS......................................................................................11
1.4 SaaS Recommendation.....................................................................................12
Part 3: Report............................................................................................................. 14
3.1 Introduction......................................................................................................14
3.2 Discussion.........................................................................................................14
Infrastructure-as-a-Service (IaaS).......................................................................14
Platform-as-a-Service (PaaS)...............................................................................14
Advantages and Disadvantages of IaaS and PaaS...............................................14
Cloud Computing................................................................................................15
3.3 Recommendations............................................................................................16
3.4 Conclusion........................................................................................................17
References..................................................................................................................18
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Part 1: PowerPoint briefing for the Directors of Webb’s Stores
1.1 Title Slide
1.2 Cloud Computing, its key concepts and how it is benefitted to Webb’s Stores
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Slide Notes
Cloud computing is a computing software and infrastructure model that is utilized for
allowing universal access to the shared pools of arrange able resources for example storage,
servers, computer networks, services and applications that can be highly allocated with
minimum administrative effort, frequently over the Internet (Moreno-Vozmediano,
Montero & Llorente, 2012).
Cloud computing enables enterprises and users, with several capabilities of computing to
process and store data in either a third party server or a privately owned cloud, which is
situated in a data center in order to make the data ingression mechanisms more reliable and
efficient. Cloud computing depends on division of allocated resources to attain economy of
scale and coherence, that is closer to a utilization.
Slide Notes
Webb’s Stores should opt for cloud computing approaches as cloud computing can help
them to keep their information safe as well as secured (Zissis & Lekkas, 2012). The key
concepts of cloud computing are as follows:
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1. Manageability: The main advantage of cloud computing is the manageability. The
monitoring, operation, deployment are easily manageable.
2. Flexibility: Cloud computing has the capability to have the control over the software,
platform and the hardware of the system.
3. Cost Effective: Cloud computing is cheaper than any other software tool and thus is
cost effective for Webb’s Stores.
4. Performance: Cloud computing increases the performance of the company that has
implemented it by reducing the complexity of the applications.
5. Security: Another important key aspect of cloud computing is security. The data and
the information are extremely protected and secure in cloud models.
These are the major and important features of cloud computing that make cloud computing
easily acceptable by all organizations.
1.3 AWS or Azure
Slide Notes
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Webb’s Stores want to implement Amazon Web Services or Microsoft Azure for their
movement of databases into cloud computing models, which means they have select either
IaaS or PaaS (Jadeja & Modi, 2012).
Amazon Web Services or AWS offers cost effective, scalable and reliable cloud computing
services or rather cost effective, reliable and virtual infrastructure. Webb’s Stores can opt
for Amazon Web Services, if they want their information to be safe and secure. This can be
implemented in cost effective way.
Microsoft Azure is a flexible, reliable and open cloud computing platform. Webb’s Stores can
opt for Microsoft Azure if they want their platform to be agile.
However, security of information is the first priority for all organizations. Therefore, Amazon
Web Services or AWS is the best option for Webb’s Stores.
1.4 Cloud Architectures
Slide Notes
Webb’s Stores can use two cloud computing architectures for moving their databases into
cloud. The two examples of such architectures are Amazon Web Services and Microsoft
Azure. Webb’s Stores can implement two architectures to move their databases. They are as
follows:
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Infrastructure-as-a-Service (IaaS): IaaS is a category of cloud computing, which gives
virtualized services of computing to organizations (Manvi & Shyam, 2014). In an IaaS model,
the third party giver presents the storage, server, software, hardware and other elements of
infrastructure but in a virtualized form. IaaS provides the underlying networking, servers,
operating systems, and security for developing such services, applications and for utilizing
development databases and tools. It includes the hard disk storage and cloud servers that
can be utilized by Webb’s Stores to receive better service. The main advantages of
Infrastructure-as-a-Service are as follows:
1. Scalibity and Flexibility: IaaS is flexible and scalable, which means it easily acceptable
by all organizations.
2. Cost Effective: IaaS is cheaper than any other cloud models and is even cheaper to
implement.
3. Faster: IaaS does not take much time for implementation and even after
implementation, the work is done very soon and without complexity.
4. High availability: This is easily available in the market so implementation of this
cloud model is very easy.
The disadvantages of Infrastructure-as-a-Service are as follows:
1. Dependence on Provider: IaaS is highly dependent on provider and it makes it less
famous.
2. Complex Resource Allocation: Resource allocation is complex and complicated in IaaS.
3. More risky: IaaS is more risky and sometimes security is a problem.
4. Virtual on demand Infrastructure: the infrastructure in IaaS is virtualized and is
virtual on demand.
Platform-as-a-Service (PaaS): PaaS is another category of cloud computing just like IaaS and
SaaS. It provides an online platform to the clients so that they can manage, develop and run
applications without the difficulty of forming and retaining the complex infrastructure
(Giessmann & Stanoevska-Slabeva, 2012). PaaS hibernates the underlying infrastructure of
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the applications that are built to run on the Internet and cloud, organisations those who
want agile, efficient applications must consider PaaS.
The advantages of PaaS are as follows:
1. Less Risky: PaaS is less risky after implementation.
2. Cost Effective: PaaS is cost effective.
3. Data Security: Security is very high in PaaS.
4. Easy Implementation: PaaS can be easily implemented.
The disadvantages of PaaS are as follows:
1. Less Availability: PaaS is not easily available in the market and this makes it harder to
get.
2. Complex Integration: The integration of PaaS with other systems is much complex
and complicated.
3. Easily Breached: Though it is secured, but still it can be easily breached by hackers
and intruders.
4. Absence of System: System is absent in PaaS, which makes it more complex to
integrate with other applications.
From the above mentioned advantages and disadvantages, it is evident that Webb’s Stores
should choose Infrastructure-as-a-Service or Amazon Web Services as it provides secured,
reliable, virtual infrastructure and the security of any orgnaziation is their first priority over
anything else.
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Part 2: PowerPoint briefing of SaaS for Webb’s Directors
2.1 Title Slide
2.2 Advantages of SaaS
Slide Notes
The Board of Webb’s is considering shifting to a Software as a Service model for giving
different office automation services such as presentation software like PowerPoint,
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spreadsheets, word processing and email. There are a number of providers of Software as a
Services that are now available and it is recommended to choose one of these services for
Webb’s.
Slide Notes
Software as a service is a delivery model and software licensing in which software is
centrally hosted and licensed on the basis of subscription . It is often referred to as software
that is on demand, and was previously referred to as services plus software by Microsoft.
SaaS is usually accessed by users, who are using a thin client via a web browser (Wu, Garg &
Buyya, 2012). Software as a Service has become a simple and common delivery model that
are used for several business applications. These applications include DBMS software, office
and messaging software, gaming, payroll processing software, management software, CAD
software, development software, virtualization, accounting, collaboration, customer
relationship management (CRM), Management Information Systems (MIS), enterprise
resource planning (ERP), invoicing, human resource management (HRM), talent
acquisition, content management (CM), and service desk management. SaaS has been
incorporated into the strategy of nearly all leading enterprise software companies.
Software as a Service has various advantages. They are as follows:
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a) High Adoption: Software as a Service is highly adopted by most of the organization
for its simple and commonly accessed implementation.
b) Cost effective : software as a Service is very cheaper than other models and thus is
cost effective for any organization.
c) Easy Up gradation: Up gradation is needed for any model and Software as a Service
can be easily up graded.
d) Easy Integration: Integration is important for all cloud models and Software as a
Service can be easily integrated with all other systems.
e) Easy implementation: Software as a Service can be easily implemented and it does
not take much time.
Webb’s Stores will be in huge profit if they will opt for Software as a Service and they will
not face any loss in their business.
1.3 Disadvantages of SaaS
Slide Notes
Software as a Service has various and several disadvantages that make it less popular for
some organizations (Gupta & Varshapriya, 2014). The disadvantages are as follows:
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a) Security issues: Security in Software as a Service is highly threatened. Information is
often lost in software as a service.
b) Data Concerns: Data is often lost in Software as a Service and this makes it complex
for the organization that whether they should opt for it or not.
c) Lack of Control: control is lost in software as a Service
d) Connectivity Required: Connectivity is needed in SaaS and this makes it more
complex.
e) Poor Performance: Due to the complexity in connectivity, Performance is often poor.
If Webb’s Stores is planning to implement SaaS, then they must keep in mind the above
mentioned disadvantages.
1.4 SaaS Recommendation
Slide Notes
Webb’s Store should opt for Google Apps for their Software as a Service. It is better than any
other software services as it is easy to implement and cost effective.
The disadvantages of Google Apps are as follows:
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a) If the servers crash, the applications would not run properly.
b) Everything is controlled by Google.
c) Non flexible.
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Part 3: Report
3.1 Introduction
Webb’s Stores has data centers in Brisbane, Sydney and Melbourne, which run MS
SQL Server 2012 R2 databases. The three data centers are linked by WAN and data is
duplicated between the data centers daily. They have a copy of the database in Auckland,
however, they are having problems in copying data to Auckland for the reason of latency.
Therefore, they are considering to shift their databases to cloud computing approaches
(Chen & Zhao, 2012).
The report outlines the better approaches between the IaaS and PaaS for this
particular case study of Webb’s Stores (Moreno-Vozmediano, Montero & Llorente, 2012).
The report also covers the advantages and the disadvantages of cloud architecture using a
table. The recommendation for selecting a particular approach for this case study is also
given here. The description of the discussion is given in the following paragraphs.
3.2 Discussion
Infrastructure-as-a-Service (IaaS)
IaaS is a category of cloud computing, which gives virtualized services of computing
to organizations. In an IaaS model, the third party giver presents the storage, server,
software, hardware and other elements of infrastructure but in a virtualized form (Moreno-
Vozmediano, Montero & Llorente, 2012).
Platform-as-a-Service (PaaS)
PaaS is another category of cloud computing just like IaaS and SaaS. It provides an
online platform to the clients so that they can manage, develop and run applications
without the difficulty of forming and retaining the complex infrastructure (Giessmann &
Stanoevska-Slabeva, 2012).
Advantages and Disadvantages of IaaS and PaaS
Advantages of IaaS Advantages of PaaS
1. Scalability: IaaS is flexible and scalable. 1.Less risky: PaaS is less risky after
implementation.
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2. Cost-Effective: IaaS is cheaper to implement 2. Cost-Effective: PaaS is cheaper to implement
3. Faster: It does not take much time to
implement.
3. Data Security: Security is very high in PaaS
4. High Availability: This is easily available in
market.
4. Easy Implementation: This can be easily
implemented.
Disadvantages of IaaS Disadvantages of PaaS
1.Dependence on Provider: IaaS is highly
dependent on provider.
1.Less Availability: PaaS is not easily available in
market.
2. Complex Resource Allocation: Resource
allocation is complex in IaaS.
2. Complex Integration: The integration with
systems is complex.
3. More Risky: Security is highly threatened. 3. Easily Breached: PaaS can be easily breached.
4. Virtual on demand Infrastructure: The
infrastructure is virtual but on demand.
4. Absence of System: System is absent in PaaS,
which makes it more complex to integrate with.
Fig. 1: Difference between IaaS and PaaS
(Source: Zissis & Lekkas, 2012)
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Cloud Computing
Cloud computing is a computing software and infrastructure model that is utilized for
allowing universal access to the shared pools of arrange able resources for example storage,
servers, computer networks, services and applications that can be highly allocated with
minimum administrative effort, frequently over the Internet (Zissis & Lekkas, 2012). Cloud
computing enables enterprises and users, with several capabilities of computing to process
and store data in either a third party server or a privately owned cloud, which is situated in
a data center in order to make the data ingression mechanisms more reliable and efficient.
Cloud computing depends on division of allocated resources to attain economy of scale and
coherence, that is closer to a utilization. Cloud computing has three major categories or
approaches (Jadeja & Modi, 2012). They are as follows:
a)Infrastructure-as-a-Service or IaaS
b) Platform-as-a-Service or PaaS
c) Software-as-a-Service or SaaS
IaaS Approach to migrate Webb’s database
IaaS is a category of cloud computing, which gives virtualized services of computing
to organizations. In an IaaS model, the third party giver presents the storage, server,
software, hardware and other elements of infrastructure but in a virtualized form (Manvi &
Shyam, 2014). IaaS provides the underlying networking, servers, operating systems, and
security for developing such services, applications and for utilizing development databases
and tools. It includes the hard disk storage and cloud servers that can be utilized by Webb’s
Stores to receive better service.
PaaS Approach to migrate Webb’s database
PaaS hibernates the underlying infrastructure of the applications that are built to run
on the Internet and cloud, organisations those who want agile, efficient applications must
consider PaaS (Giessmann & Stanoevska-Slabeva, 2012). If Webb’s Store wants agile,
efficient applications for better customers experience they must opt PaaS.
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3.3 Recommendations
Webb’s Stores should opt for IaaS for solving their issues and problems. It will help
them to keep the information safe and secure. They should focus on the security of
company at first and then they should focus on their software applications. When the
security of the company is breached, Webb’s Stores will suffer huge losses and even will not
be able to retrieve information. Therefore, it would be better if they opt for IaaS.
3.4 Conclusion
Therefore, from the above discussion it can be concluded that, Webb’s Stores should
opt for IaaS for their moving of databases into cloud computing. IaaS will provide them
virtual infrastructure and will help them to keep their information safe and secure.
Moreover, IaaS would be cost effective and they would not have to invest a huge amount
for the implementation.
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References
Chen, D., & Zhao, H. (2012, March). Data security and privacy protection issues in cloud
computing. In Computer Science and Electronics Engineering (ICCSEE), 2012
International Conference on (Vol. 1, pp. 647-651). IEEE.
Giessmann, A., & Stanoevska-Slabeva, K. (2012). Business models of platform as a service
(PaaS) providers: current state and future directions. JITTA: Journal of Information
Technology Theory and Application, 13(4), 31.
Gupta, N., & Varshapriya, J. N. (2014). Software as a Service. International Journal of
Innovative Research in Advanced Engineering (IJIRAE)-2014.
Jadeja, Y., & Modi, K. (2012, March). Cloud computing-concepts, architecture and
challenges. In Computing, Electronics and Electrical Technologies (ICCEET), 2012
International Conference on (pp. 877-880). IEEE.
Manvi, S. S., & Shyam, G. K. (2014). Resource management for Infrastructure as a Service
(IaaS) in cloud computing: A survey. Journal of Network and Computer
Applications, 41, 424-440.
Moreno-Vozmediano, R., Montero, R. S., & Llorente, I. M. (2012). Iaas cloud architecture:
From virtualized datacenters to federated cloud infrastructures. Computer, 45(12),
65-72.
Wu, L., Garg, S. K., & Buyya, R. (2012). SLA-based admission control for a Software-as-a-
Service provider in Cloud computing environments. Journal of Computer and System
Sciences, 78(5), 1280-1299.
Zissis, D., & Lekkas, D. (2012). Addressing cloud computing security issues. Future
Generation computer systems, 28(3), 583-592.
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