Application Platform as a Service
Application Platform as a Service or a PaaS is better known as Platform as a Service or PaaS and refers to a cloud computing model similar to Software as a Service or SaaS and Infrastructure as a Service of IaaS. This technology provides end-users with operating systems, hardware, network equipments and storage facilities that are required over the cloud so that they can launch new applications and run existing ones.
Products like Google App Engine offer Application Platform and VM Force as a Service. This helps to make the technical aspects of producing and installing applications much easier since it is simple to maintain; it is also resilient to faults and scalable.
This makes PaaS very advantageous for end-users. The operating system may be improved and frequently upgraded and development staff that is distributed geographically can collaborate on projects through a cloud.