CLOUD DELIVERY MODELS

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CLOUD DELIVERY MODELS
A Cloud Delivery Model represents a specific, pre-packaged combination of IT resources offered by a cloud provider. Three common cloud delivery models have become widely established and formalized:





fig Credit : visionhub123.blogspot.com


  • IAAS ( Infrastructure as a Service )
  • PAAS ( Platform as a Service )
  • SAAS ( Software as a Service )



 fig Credit : visionhub123.blogspot.com


Infrastructure as a Service is the delivery of computer hardware (servers, networking technology, storage, and data center space) as a service. It may also include the delivery of operating systems and virtualization technology to manage the resources.
fig Credit : visionhub123.blogspot.com

Platform as a Service includes the delivery of more than just infrastructure. It delivers what you might call a solution stack — an integrated set of software that provides everything a developer needs to build an application — for both software development and runtime.
fig Credit : visionhub123.blogspot.com

Software as a Service is the delivery of business applications designed for a specific purpose. Software as a Service comes in two distinct modes:
o    Simple multi-tenancy: Each customer has its own resources that are segregated from those of other customers. It amounts to a relatively inefficient form of multi-tenancy.
o    Fine-grain multi-tenancy: This offers the same level of segregation but is far more efficient. All resources are shared, but customer data and access capabilities are segregated within the application.
fig Credit : visionhub123.blogspot.com












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