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This article will explain in detail how to explain the differences between IAAS, SAAS and PAAS. The content of the article is of high quality, so the editor will share it with you for reference. I hope you will have some understanding of the relevant knowledge after reading this article.

You must have heard of the three "high-end" concepts in cloud computing: IaaS, PaaS and SaaS, which are not easy to understand. However, if you are a foodie and like pizza, this problem can be solved! Well, in fact, you are not a foodie at all. The reason why you advertise yourself as foodie is to get an admirable compliment. "foodie is still so thin, how envious!" Or, we have to find a decent reason for Weifeng of the family.

How does a foodie get pizza?

1. Do it yourself at home

This is a real hassle. You have to prepare a lot of things, such as baking noodles, making dough, and getting into the oven. To make a simple list, you need everything shown in the following figure:

two。 Buy fast food pizza and go home and cook for yourself.

All you have to do is buy the finished product from the pizzeria, go home and bake it, and eat at your own table. Instead of doing it at home, you need a pizza supplier.

3. Call for takeout to deliver pizza home

Make a phone call and pizza will deliver it to your door.

4. Eat pizza at the pizzeria

You don't need to prepare anything, even the table belongs to pizza.

To sum up, foodie can eat pizza in the following ways:

All right, now forget about pizza!

Suppose you are a super technology company that doesn't need services at all. You have infrastructure, applications, and everything else. You divide them into three layers: infrastructure (infrastructure), platform (platform), and software (software), as shown below:

These are actually the three layers of cloud computing, with the infrastructure at the bottom, the platform in the middle, and the software at the top, namely Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS). Other "soft" layers can be added on top of these layers.

Your company has everything, and now you're in a state called local deployment (On-Premises), just like doing pizza in your own home. A few years ago, if you wanted to run some enterprise applications on your office or company's website, you needed to buy servers or other expensive hardware to control local applications and get your business up and running. This is called local deployment.

If your BOSS suddenly figured it out one day, just to eat pizza, why do you have to make it yourself? So, you are ready to consider what services a cloud service provider can provide. The cloud services it can provide are the three layers of cloud computing: IaaS, PaaS and SaaS, just as Pizza offers three services: buying finished products for home cooking, takeout and eating at a pizzeria.

That's what it looks like with a picture.

Now let's talk about the details.

IaaS: Infrastructure-as-a-Service (Infrastructure as a Service)

With IaaS, you can outsource the hardware somewhere else. IaaS will provide off-site servers, storage and network hardware that you can rent. Saving maintenance costs and office space, companies can use this hardware to run their applications at any time.

Some big IaaS companies include Amazon, Microsoft, VMWare, Rackspace and Red Hat. However, these companies have their own expertise, such as Amazon and Microsoft not only provide you with IaaS, they will also rent their computing power to you to host your website.

PaaS: Platform-as-a-Service (platform as a Service)

The second layer is the so-called PaaS, which is sometimes called middleware. All the development of your company can be carried out at this level, saving time and resources.

PaaS provides a variety of solutions for developing and distributing applications, such as virtual servers and operating systems, online. This saves you money on hardware and makes it easier to collaborate between distributed studios. Web application management, application design, application hosting, storage, security and application development collaboration tools.

Some of the big PaaS providers have Google App Engine,Microsoft Azure,Force.com,Heroku,Engine Yard. The most recent companies are AppFog,Mendix and Standing Cloud.

SaaS: Software-as-a-Service (Software as a Service)

The third layer is also called SaaS. This layer is the one that comes into contact with your life every day, mostly through a web browser. Any application on a remote server can be run over the network, which is called SaaS.

The services you consume enter these categories entirely from web pages such as Netflix,MOG,Google Apps,Box.net,Dropbox or Apple's iCloud. Although these web services are used for business and entertainment or both, they are also part of cloud technology.

Some SaaS applications used for business include Citrix's Go To Meeting,Cisco, WebEx,Salesforce 's CRM,ADP,Workday and SuccessFactors.

On how to explain the differences between IAAS, SAAS, PAAS to share here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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