What does cs structure refer to?

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　C/ S is also called Client/Server or client/server mode. The server usually uses a high-performance PC, workstation or minicomputer, and uses a large database system, such as Oracle, Sybase, Informix or SQL Server. The client needs to install special client software.

　The advantage of C/S is that it can give full play to the processing capabilities of the client PC. Many tasks can be processed on the client and then submitted to the server. The corresponding advantage is that the client responds quickly.

##　The main disadvantages are as follows:

　●Only applies to local area network. With the rapid development of the Internet, mobile office and distributed office are becoming more and more popular, which requires our system to be scalable. This method of remote access requires specialized technology, and the system must be specially designed to handle distributed data.

　●The client needs to install special client software. First of all, it involves the workload of installation. Secondly, if any computer has problems, such as viruses or hardware damage, it requires installation or maintenance. Especially if there are many branches or specialty stores, it is not a matter of workload, but a matter of distance. In addition, when the system software is upgraded, each client needs to be reinstalled, and the maintenance and upgrade costs are very high.

　●There are generally restrictions on the client’s operating system. May be suitable for Win98, but not for Win2000 or Windows XP. Or it is not applicable to Microsoft's new operating systems, etc., let alone Linux, Unix, etc.

　

B/Ｓ is the abbreviation of Browser/Server. You only need to install a browser (Browser) on the client, such as Netscape Navigator or Internet Explorer. Oracle, Sybase, and Informix are installed on the server. Or a database such as SQL Server. The browser interacts with the database through the Web Server.

　The biggest advantage of B/S is that it can be operated anywhere without installing any special software. As long as there is a computer with Internet access, it can be used, and the client has zero maintenance. The system is very easy to expand. As long as you have access to the Internet and the system administrator assigns a username and password, you can use it. You can even apply online. After passing the company's internal security certification (such as CA certificate), no human participation is required. The system can automatically assign an account to the user to enter the system.

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