XaaS, or "Everything as a Service," is a broad term that encompasses a range of cloud computing models where various products, applications, and services are delivered to users and organizations over the internet as on-demand services. This includes Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS), as well as newer variations such as Function as a Service (FaaS), Database as a Service (DBaaS), and more.
XaaS allows users to access and use computing resources, software applications, and solutions without the need for extensive on-premises infrastructure and with the flexibility to scale resources up or down as needed. It has become a key paradigm in modern IT, offering cost-efficiency, scalability, and accessibility to a wide range of technologies and capabilities.