Software as a Service (SaaS)
SaaS is all about delivering the software application over the internet. This is the most common model of cloud services as seen by the consumers. With SaaS, Businesses delegates the task of management and deployment of software to third-party services. The SaaS provider takes care of everything – and the customer always has the latest version of the application.
Platform as a Service (PaaS)
Platform-as-a-service (PaaS) provides a cloud platform and tools to help developers build and deploy cloud applications. Users access PaaS from a Web browser, so there is no need to purchase and maintain the underlying hardware and software. With PaaS, developers can pick and choose the features they want on a subscription basis.
Infrastructure as a Service (IaaS)
With IaaS, enterprises can easily avoid the complexity and expenses in buying and managing in-house hardware setup. Facilities like platform virtualization, dynamic scaling, automated administrative tasks etc., are available with cloud service on an outsourced basis to support enterprise operations. With cloud resource, businesses can easily jump to installation and integration of additional requirement rather than purchasing and can build their own IT platforms and pay only for what they use.