The term platform-as-a-service (PaaS) refers to a cloud computing model that provides a platform allowing developers to build, deploy, and manage applications without dealing with the underlying infrastructure. PaaS offers a comprehensive environment with tools and services that simplify the development process, enhance collaboration, and improve scalability. This model allows businesses to focus on application development rather than hardware and software management, accelerating time-to-market and fostering innovation while reducing overall IT costs.