Which of the following terms is used to collectively refer to Infrastructure as a Service, Platform as a Service, and Software as a Service?

The term that collectively refers to Infrastructure as a Service, Platform as a Service, and Software as a Service is recognized as service models. This designation highlights the various ways in which cloud services are provided, with each model serving distinct purposes while operating within the overarching framework of cloud computing.

Infrastructure as a Service (IaaS) focuses on providing virtualized computing resources over the internet, allowing users to manage operating systems and applications while the underlying hardware is maintained by the provider. Platform as a Service (PaaS) offers a platform to develop, run, and manage applications without dealing with the underlying infrastructure, streamlining the development process. Software as a Service (SaaS) delivers software applications over the internet, allowing users to access and use software without installation or maintenance concerns.

Using the term 'service models' encapsulates these offerings, emphasizing that they represent different layers or models within the cloud service landscape designed to meet varied user needs and business requirements. Each service model serves specific intended outcomes and governance frameworks, reflecting the flexibility and scalability that cloud technology promises.