PaaS is a model for running applications without the trouble of maintaining the hardware and software infrastructure at your company.Platform as a service (PaaS) is a category of cloud computing services that provides a computing platform and a solution stack as a service.In this model, the consumer creates the software using tools and/or libraries from the provider. The consumer also controls software deployment and configuration settings. The provider provides the networks, servers, storage, and other services that are required to host the consumer’s application.
PaaS offerings facilitate the deployment of applications without the cost and complexity of buying and managing the underlying hardware and software and provisioning hosting capabilities.
In case of PaaS platform, on the other hand, a user organization accesses the platform hardware and operating system over the internet on pay per use basis. This allows for refreshing the OS, accessing virtualized servers, and using the associated resources to develop, run, and test software applications in a pay-per-use fashion.
Amazon Web Services (AWS):Amazon Elastic Beanstalk of AWS allows developers to host, deploy, and manage applications in the cloud.
Google:Google’s PaaS platform, App Engine, allows organizations to build and host their web applications. The vendor promises centralized administration, 99.9% uptime, and security. It charges $8 per user per month (with maximum of $1000 a month) for its PaaS platform.
OrangeScape:OrangeScape claims to offer, what it calls, a Cross-Cloud PaaS platform by integrating the resources of Google App Engine, Microsoft Azure, IBM Smart Cloud, and Amazon EC2.
Microsoft: Microsoft offers PaaS platform services using Windows Azure AppFabric. These cloud middleware services include Service Bus, Access Control, Caching, Integration, and Composite App. The vendor assures compatibility with all programming languages and development frameworks including .NET, Java, Ruby, and PHP.
Salesforce.com: PaaS platform offerings of Salesforce.com include Social Application Platforms, Raw Compute Platforms, Web Application Platforms, and Business Application Platforms.
Sify Technologies: Sify’s PaaS services are offered using its On-Demand Hosting Platform powered by HP’s converged infrastructure components.