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Platform as a service (PaaS) is a cloud computing model in which a third-party provider delivers hardware and software tools usually those needed for application development to users over the internet. A PaaS provider hosts the hardware and software on its own infrastructure. As a result, PaaS frees users from having to install in-house hardware and software to develop or run a new application.
PaaS does not typically replace a business’s entire IT infrastructure. Instead, a business relies on PaaS providers for key services, such as application hosting or Java development.
A PaaS provider builds and supplies a resilient and optimized environment on which users can install applications and data sets. Users can focus on creating and running applications rather than constructing and maintaining the underlying infrastructure and services.
Many PaaS products are geared toward software development. These platforms offer compute and storage infrastructure, as well as text editing, version management, compiling and testing services that help developers create new software more quickly and efficiently. A PaaS product can also enable development teams to collaborate and work together, regardless of their physical location.
Benefits of Cloud PaaS
Eliminating much of the overhead to deploy and manage applications doesn’t just mean you can do certain things faster. It means you don’t have to do certain things at all. Which means that you don’t even need to know how to do them. Which allows you to be even better at knowing how to do the things that differentiate your business, like building applications with innovative features and exceptional user experiences.
Focusing development resources and spending less headcount on unneeded expertise are both benefits that intuitively translate into reducing costs. But beyond these obvious things are even more ways that PaaS saves real money compared with doing it yourself on IaaS.
Economies of Scale
The benefit of economies of scale doesn’t simply stop at getting the same thing for less money. What you actually end up with is something better, for less money. The stack and platform-level technology you would build yourself will almost never be as good as what a top PaaS will provide. Few companies have both the ability to pay and the attractiveness to hire the world’s best platform builders. The top platform builders are in companies whose main business is platform. People who are world-class in a given discipline for the most part want to work somewhere where that discipline is core to the business, not in an ancillary or supporting role.
PaaS offers scaling mechanisms developed by experts over time and in response to the needs of many customers. On top of that, the PaaS scaling mechanism leverages the underlying infrastructure’s elasticity but presents it in an easy-to-use way, abstracting the complexity of the mechanism’s details.
Security showcases another distinct advantage of the PaaS model. With the sheer volume and the diversity of security threats on an upward spiral, protecting against attacks is best left to specialists. A PaaS offering provides continual security updates for individual stack components as they are issued.
PaaS offerings can help you achieve your availability goals and give you innovative new disaster recovery/ business continuity options. PaaS vendors have the tools, technologies, and experience to help you avoid the unplanned outages that cause downtime. The best PaaS vendors embed technologies and techniques in their products to keep availability high enough that they can offer service-level agreements (SLAs) at or above 99.9% availability.