Characteristics of Cloud Computing

  • Described as: On-demand computing, pay as you go, software as a service, utility computing
  • Usually costs, but cost-effective
  • Emphasizes availability
  • Virtualization
  • Scalable (expand on current hardware)
  • Elastic (dynamically add hardware as needed by application/user)
  • Distributed and highly parallel approach
  • Replication, replication, replication.
On-demand self service:
Cloud computing resources can be provisioned on-demand by the users, without requiring interactions with the cloud service provider.   The process of provisioning resources is automated.

Broad network access:
Cloud computing resources can be accessed over the network using standard access mechanisms that provide platform-independent access through the use of heterogeneous client platforms such as workstations, laptops, tablets and smartphones.

Resource pooling:
The computing and storage resources provided by cloud service providers are pooled to serve multiple users using multi-tenancy. Multi-tenant aspects of the cloud allow multiple users to be served by the same physical hardware.

Rapid elasticity:
Cloud computing resources can be provisioned rapidly and elastically. Cloud resources can be rapidly scaled up or down based on demand.

Reliability:
Applications deployed in cloud computing environments generally have a higher reliability since the underlying IT infrastructure is professionally managed by the cloud service.

Multi-tenancy:
The multi-tenanted approach of the cloud allows multiple users to make use of the same shared resources.
In virtual multi-tenancy, computing and storage resources are shared among multiple users.
In organic multi-tenancy every component in the system architecture is shared among multiple tenants

Comments

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