IDC: Classification of cloud computing services

From the perspective of end-user usage, cloud computing can be divided into infrastructure cloud (infrastructure Cloud), platform Cloud (Platform Cloud) and Application Cloud (creator Cloud). Their differences are the different levels of IT services offered by end User Service providers:

Infrastructure cloud, or infrastructure as a service (IaaS): The infrastructure cloud typically provides computing services such as CPU, network, and storage over the network in the form of virtual machines. Typically installed on a network-based virtual machine. Users can install their own operating systems and applications on this type of cloud. The infrastructure cloud also includes ip-based VPN wide-area and communication services so that end users can manage their own virtual resources through a network interface.

Platform Cloud, or platform as a service (PaaS): The platform Cloud provides a collection of hardware and software (including operating systems, development/management tools, databases, etc.) on the cloud architecture to provide users with an application development and production environment, as well as a corresponding host environment and infrastructure.

Application cloud, or software as a service (SaaS): Virtualization of the entire application collection and supply to end users. Which is also known as the application as a service (AaaS).

Depending on the form of cloud computing services, it can be divided into private cloud, public cloud and mixed cloud. The main difference between a private cloud and a public cloud is three points:

Network connectivity: Both public and private clouds are based on Internet standards. But the public cloud is connected through the Internet (the Internet), and the private cloud is accessed through the intranet.

Service object: The public cloud is used by end users or other business applications developed by end users, while private cloud clients are enterprise ecosystem users, including enterprise personnel, suppliers, and customers.

Payment method: End users need to pay regularly for the use of public cloud computing, and for private cloud computing users may need to pay (such as enterprise suppliers), can also be free to use (such as internal employees).

The hybrid cloud, as its name suggests, is a cloud-computing platform that mixes both public and internal users with services.