IaaS stands for “Infrastructure-as-a-Service”
This is the most common service model of cloud computing as it offers the essential infrastructure of virtual servers, network, operating systems and data storage drives. It allows for the elasticity, consistency and scalability that many businesses seek with the cloud, and removes the need for hardware in the office. This makes it ideal for small and medium sized organizations looking for a profitable IT solution to support business growth. IaaS is a fully outsourced pay-for-use service and is available as a community, private or hybrid infrastructure.
IaaS examples: AWS EC2, Rackspace, Google Compute Engine (GCE), Digital Ocean, Magento 1 Enterprise Edition*.
PaaS stands for “Platform-as-a-Service”
This is where cloud computing providers deploy the infrastructure and software framework, but businesses can develop and run their own applications. Web applications can be shaped quickly and easily via PaaS, and the provision is flexible and robust enough to support them. PaaS solutions are scalable and perfect for business settings where multiple developers are working on a single project. It is also handy for situations where an existing data source (such as CRM tool) needs to be leveraged.
Examples: AWS Elastic, Heroku
SaaS means “Software-as-a-Service”
This cloud computing solution involves the deployment of software over the net to numerous industries who pay via subscription or a pay-per-use model. It is a valuable instrument for CRM and for applications that need a lot of web or mobile access – such as mobile sales organization software. SaaS is accomplished from a vital site so businesses don’t have to worry about sustaining it themselves, and is perfect for short-term projects.
Examples: Able Payroll Online, Microsoft Dynamics
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