1. Platform as a Service(PaaS)

Platform as a Service is developer-oriented cloud computing. The most important feature of this type of cloud computing is that it comes with a development environment and provides developers with a development toolkit.

2, Software-as-a-Service (SaaS)

Software-as-a-Service is cloud computing that can be perceived by the average consumer, and the most important feature of this kind of cloud computing is that the consumer doesn't buy any physical product, but rather a service that has the same function as a physical product.

3, infrastructure as a service (IaaS)

Infrastructure as a service is generally oriented to business users, the biggest feature of this cloud computing is that it rents out the computing and storage capacity of the server.

The realization form of cloud computing

Cloud computing is built on the basis of advanced Internet technology, and it is realized in many forms, mainly through the following forms:

(1) Software as a service. Usually the user issues a demand for services, and the cloud system provides resources and programs, etc. to the user through the browser. It is worth mentioning that it does not cost anything to deliver service information using a browser application, and the same is true for the provider, as long as the maintenance of the application is done.

(2) Web services. Developers are able to continuously improve on the basis of the API, develop new applications, and greatly improve the performance of the operation of the stand-alone program.

(3) platform services. General services in the development environment, to assist intermediaries in upgrading and research and development of the program, while improving the user's download function, the user can download through the Internet, with fast, efficient features.

(4) Internet integration. When using the Internet to issue instructions, perhaps there are many similar services, the cloud system will match the appropriate services according to the end-user needs.

(5) Commercial service platform. The purpose of building a business service platform is to provide a communication platform for users and providers, thus requiring managed services and software-as-a-service paired applications.

(6) managed service providers. This application model is not strange, often served in the IT industry, common services are: scanning mail viruses, monitoring the application environment and so on.