The term "cloud computing service model" refers to the framework that defines how cloud services are provided to users. The main categories include Infrastructure as a Service (IaaS), which offers virtualized computing resources; Platform as a Service (PaaS), which provides a development platform for applications; and Software as a Service (SaaS), which delivers software via the internet on a subscription basis. Each model varies in the level of management and control required from users, enabling organizations to choose the best fit according to their operational needs and technological capabilities.