SOA - Cloud Computing


Cloud computing is a model used for enabling convenient and usage-based network access to a configurable computing resources (eg. networks, servers etc) that can be provided and used rapidly.

  • It provides a chance to business users to implement services with usage-based billing that is changed according to their requirements without need of consulting with IT department.

  • It provides an abstraction layer between computing resources and its technical implementation details and sequentially enables computational resources to be used while avoiding efforts in infrastructure management.

Concepts in Cloud Computing

The below figure shows the SOA cloud computing along with the models:

SOA Cloud Computing

Below are the models that are differentiated on the horizontal scaling basis in cloud computing:

  • Infrastructure-as-a-Service (IaaS): It provides a hardware platform as a service.

  • Platform-as-a-Service (PaaS): It provides end-users an application development environment delivered over the internet.

  • Software-as-a-Service (SaaS): It provides end-users a standardized, network-delivered IT applications.

The distinctions are made according to availability and the location of installation in the deployment models. Private clouds are internal company services whereas public clouds are the services that are available to the public on internet.

In the large companies where IT plays an important role, internal company cloud solutions are often built in their own data centers. Small and medium companies often use public cloud services. Cloud Computing provides a very flexible and scalable platform through processing external services and also has the ability to connect with customers, suppliers etc.

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