First of all, whether it is public cloud, private cloud, hybrid cloud or private cloud, it is a landing scheme for specific target products and services. The requirements of enterprises for products and services will directly affect the choice of specific deployment forms. For example, for common, mature and highly standardized products such as manpower, finance and sales, it can often provide common functions to meet the daily needs of customers. Therefore, unless the group company has a highly customized demand for its own system, it can use the public cloud to obtain similar standardized tool services; Similarly, for digital systems in the engineering industry, the underlying components such as PAAS 3D data engine, which are often needed for system development, are still in the early emerging development stage of the industry. Owners and customers who study the landing projects of digital systems often belong to large groups, so they prefer private buyout deployment, so as to better control the development of system hardware equipment and platform systems.
Secondly, regarding the capital budget, for entrepreneurial small and medium-sized companies, the funds are often limited and they can't afford the continuous investment in long-term infrastructure. We can consider the way of public cloud to provide professional services at a more affordable price; For well-funded enterprises, price is not the focus of their consideration, and they pay more attention to the quality level of products and services. In order to avoid the influence of unstable bandwidth transmission of public cloud, they mostly use private cloud to build the architecture system, thus ensuring the stable operation of the system.
Thirdly, for data security, for those enterprises that involve important data such as patient privacy and major engineering secrets, in the absence of clear laws and regulations on cloud computing platform security and data security, they may prefer to use private clouds to deploy locally to ensure data security. It should be reminded that the security of cloud computing is related to the data encryption level, while the encryption level is related to the technical level, depending on the specific operation and encryption team algorithm, and is highly positively related to the continuous investment of personnel and technology. So objectively speaking, the annual investment of public cloud providers far exceeds the continuous private cloud security investment of a single customer. In theory, the security level of public cloud is as good as or even better than that of private cloud. Of course, for the above highly important data, the private cloud deployment is superimposed with the physical isolation of the internal and external networks, and the security level is higher and more comprehensive.
Finally, the deployment of private cloud requires the continuous management and maintenance of local equipment, which requires a complete operation and maintenance team. At the same time, due to the loosely coupled flexible calling concept of cloud computing, its business practice is often different from traditional software maintenance. If traditional IT teams don't understand cloud computing and service invocation related to their own enterprises, their operation and maintenance level often can't keep up with the specific business. If you don't have the right team and the company doesn't want to be responsible for the investment in cloud infrastructure, you can adopt a public cloud.