13-04-2012, 02:20 PM
Services and Applications on cloud
Services and Applications on cloud.pptx (Size: 506.63 KB / Downloads: 36)
STORAGE ON CLOUD
STORING YOUR DATA WITH A CLOUD SERVICE PROVIDER RATHER THAN ON A LOCAL SYATEM .
YOU ACCESS THE DATA STORED ON THE CLOUD VIA AN INTERNET LINK.
SaaS
Reduced distribution and maintenance costs and minimal end-user system costs generally make SaaS applications cheaper to use.
No hardware or software to manage
Service delivered through a browser
characteristics
Pay per use
The software and the service are monitored and maintained by the vendor.
Such applications feature automated upgrades, updates, and patch management and much faster rollout of changes.
SaaS supports multiple users and provides a shared data model through a single-instance, multi-tenancy model.
PaaS
The Platform as a Service model describes a software environment in which a developer can create customized solutions within the context of the development tools that the platform provides.
In a PaaS model, customers may interact with the software to enter and retrieve data, perform actions, get results, and to the degree that the vendor allows it, customize the platform involved.
characteristics
Web based user interface creation tools
Multi-tenant architecture
Integration with web services and databases
Support for development team collaboration
Utility-grade instrumentation
IaaS
IaaS provides basic services, such as virtual servers, data storage, and databases into one platform for deploying and running your applications.
Infrastructure as a Service (IaaS) is a cloud computing service model in which hardware is virtualized in the cloud.
Cloud users rent storage, computation, and maintenance from cloud providers