Cloud Computing is a fast growing industry in this decade and small or big businesses are shifting to cloud based services. Differentiating and choosing the right model for your company can be difficult. To help you out, we are here with different features of all the different cloud computing models that various cloud service providers provide. Also read this article to find out more about types of cloud computing.
We will be comparing them on the basis of Delivery, will look at its advantages, its characteristics, and finally how to use them. You will get a clear idea about the cloud computing models after reading this article.
SaaS: Software as Service
Software as a Service, additionally referred to as cloud application services, represent the foremost normally used choice for businesses within the cloud market. SaaS utilizes the web to deliver applications to its users that are managed by a third-party seller. A majority of SaaS applications are run directly through the web browser, and don’t need any downloads or installations on the consumer side.
As SaaS is completely based on Internet, it avoids the hectic transfer and installation of the required software on each computer. With the help of SaaS, third party manages all the technical glitches like managing servers and storage, middleware, and there will be no problems for the business.
SaaS provides a numerous advantages to the companies and employees by saving the time and money invested behind the installation, managing and upgradation of software.
- It is managed from a centralized location.
- It can be hosted on a remote server
- Available on internet
- Users has no relation with software and hardware updates.
- When you quickly need to setup some website or have some issues with servers.
- Short term use for a project.
- Application which require both web and mobile access is favourable.
Examples: Google Apps, Dropbox, Cisco WebEx etc.
PaaS: Platform as Service
PaaS is a cloud platform service which provides framework for the developers to develop and create different type of applications. In PaaS all the server management, storage, and networking can be managed by the third party and the developers can manage and maintain their applications.
The delivery of PaaS is almost the same as of SaaS, instead of providing the software over the web PaaS provides platform for developing the applications. This platform is also distributed over the web and developers has no worries about the storage, software updates, operating systems etc.
PaaS allows developers to develop software with special components in the PaaS and this kind of software, or middleware, are highly scalable as they use cloud characteristics.
PaaS has many advantages, not considering the size of your business.
- It is very easy to develop and deploy for apps and software.
- It is highly scalable.
- Developers have the power to make customized applications without any hectic maintaining of software.
- It reduces a lot of code which is to be written.
- It is really easy to migrate to hybrid model from PaaS.
- It helps in automating the business policies.
- PaaS is built with virtualization technology which makes it easy to scale your resources.
- PaaS has a large variety of tools to develop, test, and deploy the applications made by developers.
- It provides the facility under which many users can access the development application at a time.
- It also integrates web services and databases.
There are many situation when using PaaS is a wise decision.
- It is good to use PaaS when there are many developers working on same development project.
- PaaS is good at providing speed and flexibility.
- PaaS is also a good option when you need to develop customized applications.
- It is cost effective.
- It helps in solving problems while rapid development of the applications.
Examples: Google Cloud, Microsoft Azure, AWS, Openshift etc.
IaaS: Infrastructure as Service
IaaS is a Cloud Infrastructure service which is made up of highly scalable and rich compute resources. IaaS is completely self-service from accessing to monitoring things, like computing, networks, storage, etc. and has the right to buy on-demand and as-needed.
IaaS delivery is completely different from that of PaaS and SaaS. IaaS delivers complete Cloud Computing Infrastructure to the organizations, with all the necessary requirements like servers, storage, network, operating systems etc. All this cloud services are mostly provided to client using an API or dashboard and it also provide the complete access of infrastructure to the client. IaaS provides all the services of traditional data centres without having to maintain and manage them. IaaS clients can access their storage and servers directly, but most of them use “virtual data centres” in the cloud.
Alike SaaS and PaaS, IaaS clients are accountable for maintaining aspects like runtime, OSes, applications, data and middleware. Moreover, the IaaS providers help in managing the servers, hard drives, virtualization, networking etc. Some of them also provide service like database or messaging queues which are outside the virtualization layer.
- It is the most flexible amongst all the cloud computing models.
- It allows easy automation of servers, networks, processing, deployment of storage etc.
- It allows the facility to buy as-needed such as you can purchase extra hardware if you are consuming more.
- Clients have complete control over the infrastructure.
- Highly Scalable.
- Resources are as a service.
- Cost is according to your consumption.
- It allows multiple users on a single hardware component.
- Dynamic and Flexible.
- Full control over the infrastructure.
There are conditions when you should choose IaaS over the SaaS and PaaS.
- If you are a small company or a start-up company who want to quick start without wasting time and money on creating hardware and software, then IaaS is a good option available for you.
- If you want complete access over the infrastructure and applications, IaaS is for you.
- If you are rapidly growing company, IaaS can help you as well because it can change hardware and software as you evolve yourself.
Examples : Amazon Web Services, Google Compute Engine, Cisco Metapod, Microsoft Azure etc.
So now you know what all the Cloud Computing Models have unique in them. And according to your requirement you can choose them wisely.