Overview#Platform as a Service (PaaS) is a Cloud Services Model which can be defined as a computing platform that allows the creation of applications quickly and easily and without the complexity of buying and maintaining the software and infrastructure underneath upon which an application would be run on.
Platform as a Service methods provide a computing platform in the "cloud" that is typically managed, at least to some degree, by the Cloud Service Provider. Typically the Platform as a Service user would decide to use Linux, UNIX, Microsoft Windows etc to be installed on the Cloud Service Provider's virtual platform.
Platform as a Service makes the development, testing, and deployment of applications quick, simple, and cost-effective. With this technology, enterprise operations, or a Cloud Service Provider, can manage Operating Systems, virtualization, servers, storage, networking, and the PaaS software itself. Developers, however, manage the applications.