Platform as a service [PaaS] - How It Works

Platform as a service (PaaS) is a category of cloud computing services that provides a platform allowing customers to develop, run, and manage applications without the complexity of building and maintaining the infrastructure.

 It is used for application development, testing and deployment over the internet, the majority of hosting infrastructure is managed for you. 

While the layers of the cloud computing have changed due to providers trying to differentiate their offering, PaaS usually contains the following features for you to develop upon.

PaaS can automate your testing and development services for you, whilst frequently updating your operating system.

It helps in providing a developing environment that makes application development possible for current and existing infrastructure.  

The service also makes a difference if you are working with a number of external parties in different locations that have internet access, several users in different locations that can work together to build the same application.

It is not suitable for applications that need to be flexible in terms of where they are hosted and it uses proprietary data, certain providers raise concerns over vendor lock in that is when a proprietary language hinders moving to another provider.

You can develop customized applications although you cannot customize the underlying hardware and software preventing full optimization of your application’s performance.

Scalability is generally regarded as a positive of cloud computing, it is limited if your business is constantly scaling up, as some providers do not make it easy to increase power or space quickly.

 
The model allows you to rent not only storage space on a server, but also space to run programs as well as operating systems and software, all of which is stored on a cloud. 

It makes it easy for developers when it comes to setting up a test environment for testing new apps, and the mobile enterprise also sees a potential for productivity on the go with the help of rented virtual computers.

It is a cloud based service guarantees leaner build-start duration and the pre established stock business and operational rules will cut some time off development too.

It is still young and thus you will have to factor in the drawbacks of being locked in with a sizeable fan-out at present.

Each cloud frameworks have specific interface methods, offerings, and associated expenses with some risk associated with depending on PaaS services as the quality of service could worsen.

There is restricted access to the software due to data security concerns.

It is a services with limited flexibility that are modified to suit User requirements

There are few options among vendors due to the vendor lock in period if a need to change arises

There is a high level dependence on a third party and the service provider a€™s adherence to a service level agreement and it is not a complete solutions as the issue of data security is present.

In order to deploy the technology and scale different applications in the same fashion, all applications must conform to a set of rules and best practices

Users will have restricted access to the operating system and will be constrained to perform development in certain platforms.

Add-ons are built for the most commonly requested use cases, they often prove limiting and making your own add-ons will be a difficult proposition too.

While the no operations methodology is possible for simple applications, it can limit critical operational capabilities as the IT operations are completely automated and covered.

You may be prevented from customizing build and deploy automation.

It may also not be possible to debug live production deployments.

Another limitation is the security, networking and storage options may be severely limited and this is a problem that companies cannot afford.

It is possible that you may have no control over hosting decisions, including an inability to deploy to specific geographic locations.

If the breach of the agreements on the level of service is related to the degree of confidence we have about the software vendor or platform as a service.

We need to know about vendor performance and application service and are aware of its advantages, but whether we comply with the agreed service level is something that should have it in house would need to taken into account before making a decision.