The document provides an overview of cloud computing, including its definition, service models (SaaS, PaaS, IaaS), and architectures (public, private, and hybrid clouds). It highlights the advantages of cloud computing over traditional in-house systems, such as cost efficiency, scalability, and reduced maintenance. Additionally, it emphasizes the growing trend of cloud adoption across various sectors like banking, hospitals, and education, predicting a significant increase in cloud-related expenditures.

1. Cloud Computing Project owner: Hayestech Pty. Ltd. Project Director: Shaniur TIM Nabi Project Manager: Mehedi Hasan Khan Team members: Asif Imran Tauhid Bin Iqbal Cloud Computing

2. Table of Contents What is Cloud Computing Cloud Services Cloud Architecture Comparative Study Expenditure Features Traditional in-house business Cloud Penetration Cloud Computing

3. What is Cloud Computing Cloud Computing is a buzzword… ……… The concept, quite simply, is that vast computing resources will reside in a remote location (rather than in your computer room) and we’ll connect to them and use them as needed. Cloud Computing

4. Cloud Computing

5. Software as a Service [SaaS]: Instead of obtaining desktop and server licenses for software products it uses, an enterprise can obtain the same functions through a hosted service from a provider through a network connection. This common cloud-computing model is known as Software as a Service (SaaS), the provider is known as the SaaS Provider. These applications could be in ERP, VCC to name a few. Cloud Computing

6. Advantages of SaaS Saves the complexity of software installation. No need for maintenance, upgrades, and patches (for example, for security fixes) for the IT team within the enterprise. SaaS provider can provide this service to multiple customers and enterprises, resulting in a multitenant model. Monitoring application-delivery performance is the responsibility of the SaaS provider. Cloud Computing

7. Platform as a Service [PaaS] Platform as a Service (PaaS) provides a software platform on which users can build their own applications and host them on the PaaS provider’s infrastructure. The software platform is used as a development framework to build, debug, and deploy applications. It often provides middleware-style services such as database and component services for use by applications. Cloud Computing

8. Advantages of PaaS PaaS is a true cloud model in that applications do not need to worry about the scalability of the underlying platform (hardware and software). When enterprises write their application to run over the PaaS provider’s software platform, the elasticity and scalability is guaranteed transparently by the PaaS platform. Cloud Computing

9. Infrastructure as a Service [IaaS] Amazon is arguably the first major proponent of Infrastructure as a Service (IaaS) through its Elastic Computing Cloud (EC2) service. An IaaS provider offers you “raw” computing, storage, and network infrastructure so that you can load your own software, including operating systems and applications, on to this infrastructure. Cloud Computing

10. Advantages of IaaS Offers you the greatest degree of control of the three models. Scaling and elasticity are your—not the provider’s—responsibility. It is a mini do-it-yourself data center that you have to configure to get the job done. Amazon uses virtualization as a critical underpinning of its EC2 service, so you actually get a VM when you ask for a specific machine configuration Cloud Computing

11. Cloud Architectures Public Cloud Community Cloud Private Cloud Hybrid Cloud Cloud Computing

12. Cloud Architectures: Public Cloud We have focused on cloud service providers whose data centers are external to the users of the service (businesses or individuals). These clouds are known as public clouds—both the infrastructure and control of these clouds is with the service provider. Cloud Computing

13. Cloud Architectures: Private Cloud A variation on this scenario is the private cloud. Here, the cloud provider is responsible only for the infrastructure and not for the control. This setup is equivalent to a section of a shared data center being partitioned for use by a specific customer. The private cloud can offer SaaS, PaaS, or IaaS services, though IaaS might appear to be a more natural fit. Cloud Computing

14. Cloud Architectures: Hybrid Cloud A hybrid cloud involves data centers storing secure and important data on the enterprise premises and less important data to be stores at a remote location in the cloud. So t is a mixture of public and private cloud that yields the most benefit. Cloud Computing

15. Cloud Computing

16. Comparative Study Cloud Computing Traditional In-house system implementation Cloud services in the form of SaaS, Paas and IaaS 1. High CapEx 1. OpEx oriented 2. Time required to implement the system 2. Comparatively low startup cost 3. Maintenance Cost 3. Pay for what you use 4. Equipment depreciation 4. Low maintenance cost 5. Dedicated staff for 24 * 7 support 5. Scalable and secure environment 6. Under-utilized resources 6. Business companies can focus on business development, not on IT.

17. Expenditure By 2011 16 billion or 4% of total IT s:pending will be on cloud. By 2012, it is likely to go upto 9%. Reasons: Cost controls, Better Peak time Economy, Readily Scalable, Concentrate on the business and less on IT infrastructure. Cloud Computing

18. Features Agility Reliability Scalability Performance Security Maintenance Cloud Computing

19. Feature 1: Scalability Cloud computing gives you the ability to expand and reduce resources according to your specific service requirement. For example, you may need a large number of server resources for the duration of a specific task. You can then release these server resources after you complete your task. twitter for instance Cloud Computing

20. Feature2: Pay-per-use You pay for cloud services only when you use them. The short term (for example, for CPU time) or for a longer duration (for example, for cloud-based storage or vault services). Cloud Computing

21. Feature 3: On-demand service Because you invoke cloud services only when you need them, they are not permanent parts of your IT infrastructure—a significant advantage for cloud use as opposed to internal IT services. With cloud services there is no need to have dedicated resources waiting to be used, as is the case with internal services. Cloud Computing

22. Feature 3: Resiliency The resiliency of a cloud service offering can completely isolate the failure of server and storage resources from cloud users. Work is migrated to a different physical resource in the cloud with or without user awareness and intervention. Cloud Computing

23. Traditional in-house business software Employees Your business Servers CRM POS ERP HRM Email VCC Hardware dependency Operating systems Databases Security patches Unpredictable costs Softwares Cloud Computing

24. Cloud Computing Penetration software Employees Your business Servers CRM POS ERP HRM Email VCC Hardware dependency Operating systems Databases Security patches Unpredictable costs Softwares Cloud Computing Cloud Computing

25. Traditional in-house business Employers Your business CRM POS ERP HRM Email VCC Softwares Cloud Computing ERP Hosted PBX Email More More 10 employees = 10 subscriptions Cloud Computing

26. Traditional in-house business Employers Your business CRM POS ERP HRM Email VCC Softwares Cloud Computing datacenters 10 employees = 10 subscriptions Hardware dependency Operating systems Databases Security patches Unpredictable costs Cloud Computing

27. Traditional in-house business Cloud Computing datacenters Hardware dependency Operating systems Databases Security patches Unpredictable costs Economies of Scale 30% to 50% less in expenditure Cloud Computing

28. Areas of cloud computing Banking Hospitals Educational institutions Cloud Computing