PaaS is short for (Platform as a Service) and it is a proven model which is used for running applications without the hassle of maintaining the hardware and software infrastructure at your company. All the enterprises spaces sizes are hold by the PaaS solutions like salesforce.com for the simplicity, scalability, and reliability. PaaS applications also have the latest features without constant upgrade pain and is a concept that describes a computing platform that is rented or delivered as an integrated solution, solution stack or service through an Internet connection. PaaS also offerings include a variety of services and service combinations spanning the application development lifecycle. Typical service features include source code control and tracking, versioning, testing and build process management tools.