“Cloud service models” encompass various delivery methods for IT resources over the internet, primarily divided into three categories: IaaS (Infrastructure as a Service), PaaS (Platform as a Service), and SaaS (Software as a Service). IaaS provides virtualized computing resources, PaaS offers a platform for application development, and SaaS delivers software applications over the cloud. These models enable businesses to reduce infrastructure costs, scale services as needed, and access advanced technologies without the burden of managing physical hardware, significantly enhancing agility and innovation.