Cloud computing service models

Three central models – Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS) – offer varying levels of flexibility and control to businesses. Each model defines distinct responsibilities shared between the organization and the cloud service provider. This section discusses the specifics of these models, detailing their characteristics and benefits.

Infrastructure as a Service (IaaS)

IaaS is a model where a cloud service provider delivers virtualized computing infrastructure over the internet. This means that organizations can access high-level computing resources without the necessity of owning, managing, or maintaining on-premises hardware. By adopting IaaS, businesses can effectively rent virtual servers, storage, and networks, paying only for the resources they use.

There’s a clear delineation of responsibilities between the organization and the cloud computing service provider...