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Cloud computing


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  • 1. Ali Bahu09/24/2012CLOUD COMPUTING
  • 2. INTRODUCTION Cloud computing is the use of both hardwareand software resources that are delivered asa service over a network. The name cloud computing comes from thecloud-shaped symbol that is used torepresent the complex infrastructure of thesystem design.
  • 3. TYPES OF CLOUD COMPUTING Infrastructure as a service (IaaS) Platform as a service (PaaS) Software as a service (SaaS) Storage as a service (STaaS) Security as a service (SECaaS) Data as a service (DaaS) Test environment as a service (TEaaS) Desktop as a service (DaaS) API as a service (APIaaS)
  • 4. INFRASTRUCTURE AS A SERVICE Consumers control and manage the systems in terms of theoperating systems, applications, storage, and networkconnectivity, but do not themselves control the cloudinfrastructure.
  • 5. PLATFORM AS A SERVICE Consumers purchase access to the platforms, enabling them todeploy their own software and applications in the cloud. Theoperating systems and network access are not managed by theconsumer, and there might be constraints as to which applicationscan be deployed.
  • 6. SOFTWARE AS A SERVICE Consumers purchase the ability to access and use an applicationor service that is hosted in the cloud.
  • 7. CHARACTERISTICS API Agility Cost Security Maintenance Virtualization Performance Scalability & elasticity Device & location independence
  • 8. CHALLENGES Lack of Standards Security and Privacy Continuously Evolving Compliance Concerns
  • 9. DEPLOYMENT MODELS Private Cloud:The cloud infrastructure has been deployed, and is maintained and operated for a specificorganization. The operation may be in-house or with a third party on the premises. Community Cloud:The cloud infrastructure is shared among a number of organizations with similar interests andrequirements. This may help limit the capital expenditure costs for its establishment as the costs areshared among the organizations. The operation may be in-house or with a third party on thepremises. Public Cloud:The cloud infrastructure is available to the public on a commercial basis by a cloud service provider.This enables a consumer to develop and deploy a service in the cloud with very little financial outlaycompared to the capital expenditure requirements normally associated with other deploymentoptions. Hybrid Cloud:The cloud infrastructure consists of a number of clouds of any type, but the clouds have the abilitythrough their interfaces to allow data and/or applications to be moved from one cloud to another. Thiscan be a combination of private and public clouds that support the requirement to retain some data inan organization, and also the need to offer services in the cloud.
  • 11. COMMUNICATIONS IN THE CLOUD Web APIs:Accessing communications capabilitiesin a cloud-based environment isachieved through APIs, primarily Web2.0 RESTful APIs, allowing applicationdevelopment outside the cloud to takeadvantage of the communicationinfrastructure within it. Media Server Control Interfaces Communications Services
  • 12. COMPANIES DELIVERING CLOUDSERVICES Google Microsoft Amazon Apple Salesforce