Cloud offerings can be broadly grouped into three major categories, IaaS, PaaS, and SaaS, based on their usage in the technology stack:

• Software as a Service (SaaS) delivers the application required by an enterprise, saving the costs an enterprise needs to procure, install, and maintain these applications, which will now be offered by a cloud service provider at competitive pricing
• Platform as a Service (PaaS) delivers the platforms required by an enterprise for building their applications, saving the cost the enterprise needs to set up and maintain these platforms, which will now be offered by a cloud service provider at competitive pricing
• Infrastructure as a Service (IaaS) delivers the infrastructure required by an enterprise for running their platforms or applications, saving the cost the enterprise needs to set up and maintain the infrastructure components, which will now be offered by a cloud service provider at competitive pricing