Cloud computing enables businesses to develop, deploy, and run applications without building and maintaining onsite IT infrastructure. The businesses can take advantage of various cloud computing service models to access a variety of computing resources – servers, networks, storage, applications and services – over the internet based on the pay-as-you-use pricing model. The organizations typically have the option to choose from three distinct cloud service models – Software as a Service (SaaS), Infrastructure as a Service (IaaS) and Platform as a Service (PaaS).
The Cloud Platform as a Service (PaaS) model simplifies deployment of customer-created applications using programming languages, development tools, libraries, and services provided by the cloud service provider. Hence, PaaS provides the infrastructure – servers, networks, and storage= required to deploy applications in the cloud. Many leading providers simplify the development, testing, deployment, updating, and management of enterprise applications by providing development tools, database management systems, middleware, and business intelligence (BI) services.
They further accelerate the development and deployment of various applications in the cloud by providing and managing the underlying cloud infrastructure. Hence, the subscribers can deploy and run their application smoothly without controlling or managing the underlying cloud infrastructure. But they can still control the applications deployed in the cloud and configure the application-hosting environment without any restrictions. That is why; it becomes essential for organizations to understand what is Cloud Platform as a Service (PaaS) while adopting cloud computing.
Like other cloud services, PaaS also has its own characteristics. As it is built on top of virtualization technology, the subscribers can upscale and downscale computing resources on demand according to their current requirements. PaaS simplifies development, testing, deployment, and management of applications in the cloud by providing a variety of services along with integrated database management systems and web services. The cloud service model further makes the application and cloud hosting environment accessible to multiple users at a time.
Different from Other Cloud Service Models
Like IaaS and SaaS, PaaS is developed on top of virtualization technologies. But PaaS still differs from other two cloud service models in a number of aspects. For instance, PaaS, like SaaS, delivers software and services over the internet. But it provides developers, testers, and IT professionals with a robust web-based platform for developing, testing, deploying, and managing various applications. It even helps users to keep the application and development environment scalable by accessing computing resources on demand. Also, PaaS, unlike IaaS, does not enable subscribers to control the underlying cloud infrastructure.
The PaaS options help both IT companies and independent developers to accelerate development, testing, deployment, and management of applications in the cloud. The enterprises can leverage PaaS to speed up application development and deployment without building and managing on-premise IT infrastructure. They can further speed up development of large and complex applications by making multiple developers work in the same project. At the same time, PaaS helps businesses to enhance accessibility and availability of customized applications without managing the underlying cloud infrastructure. Many businesses even take advantage of PaaS options to migrate to hybrid model and automate business policy.
Many PaaS Providers
The individual and enterprise users have the option to choose from many PaaS providers. They can deploy, scale, and manage applications in the cloud by availing PaaS options provided by Amazon Web Services (AWS), Microsoft Azure, Salesforce, IBM, RedHat, and Google. At the same time, they can also avail PaaS options provided by lesser know cloud service providers. Hence, it becomes easier for businesses to customize PaaS options according to their precise needs by choosing the right PaaS provider.
PaaS helps developers to create, test, deploy, and manage applications in the cloud rapidly and efficiently. The businesses can leverage PaaS to enable multiple developers to work on the same software development project simultaneously. The PaaS providers allow subscribers to avail services, solutions, tools, and features according to the precise needs of each project. Hence, the businesses can opt for PaaS to customize computing resource for individual application without incurring additional cost.
Overall, Cloud Platform as a Service (PaaS) is the cloud computing service model that helps businesses to build, deploy, test, update, and manage their applications smoothly without creating and maintaining the required IT infrastructure. In addition to providing the required computing resources on demand, the cloud service providers control and manage the underlying cloud infrastructure.