Platform as a Service (PaaS) is a cloud computing service model where a provider delivers hardware and software typically with the goal of supporting an organization's application development and hosting needs over the internet:

The organization manages:

• Applications deployed on the cloud computing infrastructure using:
  • Programming languages
  • Development libraries
  • Application services
  • Development tools

The cloud computing service also manages the underlying cloud infrastructure, which includes:

• Processing
• Physical storage
• Networks
• Operating system