CLOUD COMPUTING SERVICE MODELS--IaaS,PaaS & SaaS

Hi guys, welcome to another blog Today, we are going to see the different types of cloud computing service models. So let's get started. What's in it. First, we are going to see what is cloud computing, then the different types of service models. And then we are going to see the key features, pros and cons of each.Then we are going to see the top companies providing these service models and finally, the end users of these service models. What is cloud computing? Before we go into cloud computing, what does the term cloud mean? Cloud refers to a network or internet it provides sources, all public and private networks.So many applications execute on the cloud. And also it is present at a very remote location. So the users can access these files and applications that is present in the cloud from any device, unless, and until it has strong internet connectivity. Now let's look at few of the cloud computing benefits. The first is cloud computing reduces cost.

So it does a, pay as it were pricing and you pay for what service you use next cloud backs up and the store's huge amounts of data. So let's take an example. We knew that iPhone uses iCloud for backup. If in case the phone crashes, all the backed up data can be restored. Cloud computing is highly reliable, and this is one of the biggest advantages you can always get instant updates about the change.

Cloud-based applications automatically refresh and update themselves. This saves valuable IT staff time and money spent on updating and refreshing the applications. Like I said before, cloud computing has unlimited storage capacity at anytime you can expand your storage capacity with very nominal monthly fee.

Now that we know, what cloud computing is. Let's look at the types of cloud computing. So it's models for the better understanding. Let's consider a scenario, consider making lasagna. You have four options. You can either bake it at home, or you can go to a restaurant to eat lasagna or walk into an event and bake or get it delivered to your doorstep.

But how is this related to cloud computing? Well, let's take a look. We have full boxes. We had the traditional method. We had the infrastructure as a service. We have platform as a service and we have software as a service in the traditional method. Everything is made at home and all the components are managed by us.

That is kitchen, electricity, microwave, lasagna sheets, then toppings, meat, and cooking the lasagna. But when it comes to infrastructure service, the main kitchen appliances are managed by the window. The other things are managed by us. So basically the infrastructure is managed by the vendor. When we look at platform as service, the infrastructure and the main ingredient for the software is managed by the window.

And the other things are managed by us. But when we look at software as a service, everything from the infrastructure to the end product is managed by the window. Now let's get into brief of all this. When we look at the traditional method, Everything is done from the scratch, from choosing the right ingredients to the mode of reparation and have the full control of the toppings.

This is similar to traditional method where all the hardware and software components are built by actual is of requirements. When you look at infrastructure as a service, we can take kitchen and Christy and microwave is the infrastructure, and this is where the code runs. The next step is to alter the software as per our requirements.

When you look at platform as a service, Uh, it's similar to going to event and making. So you have the main ingredient. There is a lasagna sheet, and then you have all the appliances that is kitchen, electricity and microwave. And the rest is management. As you can add the toppings or you don't want to put meat, or you want it to be wet, it's all up to us.

So the conference are altered as per our requirements. Finally, in software service, the entire thing is modeled by the way. So, this is where you just given your requirements and you get the software delivered to you. It's basically where the deployment and framework of the project is already set. Now that we have a brief of all the services, let's dive deep into each one of them.

First, we have infrastructure as well. Infrastructure cloud provider gives a variety of infrastructures, such as storage services, network hardware, and so on. It also maintains and supports these infrastructures. Customers can access these resources over the internet. Next let's look at the benefits of infrastructure.

So the first feature is that these resources can easily be scaled up and down next. The cost depends on the consumption. So basically it's a pay as you go pricing and you pay for what you use, you pay for the services you use. A single piece of SOA can give up a lot of information to many users and finally. 

The client has complete control over the architecture. Now let's look at the pros of infrastructure as a service model. Firstly, it is highly flexible. This is because only the infrastructure is provided and the rest depends on the customer requirements. Next, like I said before, it is cost effective and you pay for what you use.

It is easy to use as all the updates are deployed and all the hardware is deployed automatically management tasks, awash realized so that the other employees have time for other tasks. Now let's look at few of it's gone. It is a multi-tenant architecture due to this. There is an issue with data centers.

When a new infrastructure is introduced, team training is required to learn all about this new infrastructure. And it consumes a lot of time if in case the soul crashes at the vendor's side, the customers cannot access the data for a while and you'd have to wait for quite a lot of time until the vendor fixes this issue.

Now that we know what infrastructure as a services let's look at platform is. That home as a service cloud computing platform is a developer programming platform, which is useful. The program was to develop, test and run and manage the applications, a developer, dries the applications and deploys it directly into this.

Leo, all the infrastructure to run the applications will be over the internet. Let's look at the benefits now, firstly, the resources can be scaled up and down based on the requirements of the user. Multiple users can access the same application. It allows for testing and hosting apps in the same environment, the web services and databases.

And so was I integrated to do one and finally the teams can collaborate very easily. Next let's look at the pros of PaaS. Firstly, the development process is quick and easy as it is a developer programming platform. It is cost efficient. You only pay for those services you use. When you use platform as a service, the coding is done by the developer before so less coding is required.

And then the migration to hybrid cloud is very easy. Next let's look at few of the cons of platform as a service, similar to IAS data security is an issue because it has a multitenant architecture. There's a compatibility issue with the existing infrastructure pass is dependent on the vendor, speed, reliability, and support.

Now that we know about platform as a service, let's go ahead and dive deep into software as a service. And software as a service, everything is done by the vendors. The end users are only responsible to give the requirements and everything is done by the providers. Now let's go ahead and look at its benefits.

The installations and updations are done by the providers. Resources are scale up and down based on the requirements of the user. The only requirement is that there has to be a strong network connectivity, and finally, the provider is responsible for everything. Now let's go ahead and look at the pros of SAS.

Upgrades are automatic. Firstly, the next it is again, a pay as you go more. It is easier to customize incest rather than the other service models. It is accessible from any location. The only constraint is that you need to have a strong internet connectivity. Let's see the cons of SAS. The provider has and trial control.

The end users only have the control of giving the requirements. There are only few solutions for software. The devices should always be connected for better performance. None that we've seen all the fee models. Let's see. Few of the companies providing these service models, the famous IAS provider, Amazon web services, Rackspace digital ocean Linode and Microsoft as your, these are only a few.

There are many more apart from these Amazon offers many features such as auto scale. Cloud monitoring and load balancing features when it comes to Rackspace, the cloud computing platform window focuses primarily on enterprise level hosting services. When you look at famous past providers, you have Hiroko Apache, Stratos OpenShift, Microsoft as your and many other providers going ahead in SAS providers, the most important one is Google apps.

Then the Salesforce, the Cisco WebEx, this Dropbox, and. Finally, let's look at the end users of the cloud computing service models. We can picture this as a pyramid. So in IAS, the end users are system admins who are responsible for maintaining everything except the infrastructure. Then in past the end, users are the developers who code on the platform provided by the vendors and SAS.

The end users are the customers who give only the requirements and the software is built based on those requirements by the windows. Thank you for reading, I hope you found this informative and stay tuned for more. .