ADLSN Training Coordinator akujengagmailcom Addis Ababa Ethiopia 5 7 November 2014 Cloud Computing Outline of Presentation Definition Types of Cloud Services Examples Facts Pros and Cons ID: 450338
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Amos Kujenga
ADLSN Training Coordinatorakujenga@gmail.comAddis Ababa, Ethiopia5 – 7 November 2014
Cloud ComputingSlide2
Outline of PresentationDefinitionTypes of Cloud ServicesExamplesFactsPros and ConsSlide3
1. 1 Cloud Computing Defined“Cloud” is a metaphor for the Internet. “Cloud Computing” is a modern phrase commonly used today to refer to the act of storing, accessing, sharing data, applications, and computing power over the Internet, in other words in cyberspace. (ANDERSON & RAINIE, 201)Slide4
1.1 Cloud Computing Defined “Cloud Computing” is when computing is delivered as a service rather than a productComputing services are made available to computers and other devices over a network such as the InternetOn-demand access can be rapidly given with minimal service provider interactionSlide5
1.2 Types Of Cloud ServicesSoftware as a Service (SaaS)Platform as a Service (PaaS)Infrastructure as a Service (IaaS)Slide6
1.21 Software as a Service (SaaS)A software distribution model in which off-the shelf applications are hosted by a vendor or service provider and made available to customers over a network, typically the Internet.Is the simplest form of cloud computingInnovative Sierra, WorldCatSlide7
1.22 Platform as a Service (SaaS)Cloud based platform, services, and tools for creating and hosting SaaS applicationsAllows users to create their own applications using supplier-specific tools and languagesRisk of vendor lock-inGoogle App Engine, Windows AzureSlide8
1.23 Infrastructure as a Service (SaaS)AKA Hardware as a Service (HaaS)Virtual computer and infrastructure services in the cloud for hosting traditional software applicationsAllows users to run any applications they please on cloud hardware of their own choiceAmazon Elastic Compute Cloud (EC2), Amazon Simple Storage Service (Amazon S3)Slide9
1. 3 Cloud Computing ExamplesCategoryExampleOffice ApplicationsGoogle Docs, MS Office 365Mailing Services
Gmail, Yahoo, ZimbraStoring ServicesDropBoxSoftware and ApplicationsHosted repositories
Video and Presentation ServicesYouTube, SlideShare, Prezi
File Sharing Services
DropBox
Calendar Services
Google Calendar
Social Networking
Facebook, Google+Slide10
1. 3 Cloud Computing ExamplesHosted Versus Non-Hosted DLsSlide11
1. 3 Cloud Computing ExamplesHosted RepositoriesSlide12
1. 3 Cloud Computing ExamplesHosted RepositoriesSlide13
1.4 Cloud Computing FactsMobile technology is driving people to cloud-based services, killing the PC marketThe exponential increase in access to the Internet is also a major playerSocial networking sites are the most popular cloud-based servicesLess staff focus on IT issues, more focus on service deliverySlide14
1.4 Cloud Computing FactsSupport by service providers as opposed to IT staffSlide15
1.5 Cloud Computing ProsNo upfront investment in hardware and/or softwareAnywhere, anytime access to data and servicesIncreased reliability (subject to debate)Ease of data sharingProvide backup to locally stored dataEase of collaborative workingServices can be provisioned in minutesScalable (add capacity as needed, no old assets)Slide16
1.6 Cloud Computing ConsSecurity concernsPrivacy concernsGreater depence on external forcesLoss of local controlVendor lock-inRequires constant high-speed Internet access“Forces” use of high-end devices