Cloud Gateway is a technology that can be used for better representation of the cloud client. For example, with the appropriate software, the storage in the cloud can be presented to the client as a local drive on your computer. Thus, work with the data in the cloud is absolutely clear.

Safety in the storage and transfer of data is one of the main issues when dealing with the cloud, especially for sensitive, private data. The overall performance when working with data in the cloud may be lower than when working with local copies of data. Reliability and timeliness of the data and availability of the cloud is dependent on many parameters such as data links on the path from the client to the cloud, the last mile problem.

For suppliers, the development of cloud hosting leads to the development of data centers. Service providers need to increase their infrastructure (servers, bandwidth, m2) to meet the growing needs of clients (scalability). The models offered by these providers must also evolve, transforming the private cloud business models.

For users, individual and corporate rental services usually associated with cloud hosting enables cost savings in the short term. But the total cost in the medium and long term may be, after a few years, higher than the cost of an internally hosted application. It depends on the mode (frequency, number of users) and the lifetime of the application. A comparative calculation is needed before making a choice.

This calculation should not be limited to direct costs, but should also incorporate all the hidden costs that the cloud is to save as well as the impact of the benefits of cloud on the business of the company (increased productivity).

The task is not necessarily facilitated by the proposed billing methods that are sometimes not “readable” and depend on several factors: the use of functions (volume), the cost of production or provision, including changes the degree of complexity, and finally the rental price of the service. The duration of engagement vary from one provider to another, but remain mostly around two or three years.

Cloud hosting can help to make savings, including through the sharing of services on a large number of customers. Some analysts suggest that 20 to 25% savings could be made by governments on their IT budget if they migrated to cloud computing. As for virtualization, cloud hosting can be as interesting for the customer thanks to its scalability. Indeed, the cost depends on the duration of use of the service rendered and requires no upfront investment (human or machine).

The elasticity of the cloud can provide scalable services and can afford to bear the load increases.