The relationship and difference between BS and CS

C/S is the abbreviation of Client/server. Servers typically employ high-performance PCs, workstations, or minicomputer, and employ large database systems such as Oracle, Sybase, Informix, or SQL Server. The client needs to install the dedicated client software.
b/S is an abbreviation for Brower/server, as long as a browser (Browser) is installed on the client, such as Netscape Navigator or Internet Explorer, the server installs Oracle, Sybase, Informix, or Databases such as SQL Server. In this structure, the user interface is implemented entirely through the WWW browser, and some transaction logic is implemented at the front end, but the main transaction logic is implemented on the server side. The browser interacts with the database through the Web server.
c/S and b/s difference:
1. Different hardware environments:
c/S is generally established in a dedicated network, a small range of network environment, LAN and then through a dedicated server to provide connectivity and data exchange services.
b/S is built on the WAN, do not need to be specialized network hardware environment, example and telephone Internet, rental equipment. Information self-management. There is more than C/s to adapt to the range, generally as long as the operating system and browser on the line
2. Different for security requirements
c/S generally oriented to a relatively fixed user base, the control of information security is very strong. Generally highly confidential information system using C/s structure is suitable. Can be published through the B/s part of the public information.
b/S is built on the wide area network, the security control ability is relatively weak, may target the unknown user.
3. Different from the program architecture
c/S program can pay more attention to the process, the authority can be multi-level check, the system running speed can be less considered.
b/S multiple considerations for security and access speed are based on the need for more optimization. C/S has a higher requirement B/s structure of the program architecture is the trend of development, from the MS. NET series BizTalk 2000Exchange 2000, etc., Fully support the network component Building system. Sun and IBM push the JavaBean component technology, so that b/s more mature.
4. Software reuse is different
c/S program can inevitably be considered as a whole, the reuse of components is not as good as the reuse of components under B/s requirements.
The multi-structure of B/s pair requires the relative independent function of the component. Can be reused relatively well. The table you bought is reusable, not a stone table on the wall.
5. system maintenance is different
Due to the integrity of the C/s program, it is necessary to investigate the problem and upgrade the system. The upgrade is difficult. Maybe it's a whole new system.
b/S components, components of the individual replacement, to achieve a seamless upgrade of the system. System maintenance overhead is minimized. Users can upgrade by downloading and installing themselves from the Internet.
6. Handling problems differently
c/S program can handle the user face fixed, and in the same area, security requirements of high demand, operating system-related. It should be the same system.
b/S is built on the wide area network, facing different user groups, dispersed area, this is the C/s can not be done. Minimal relationship to the operating system platform.
7. User interface is different
C/S is established window platform, the performance method is limited, the programmer generally requires higher
b/s based on the browser, there is a richer and more vivid way to communicate with users. And most of the difficulty is reduced, reducing development costs.
8. Different information flow
c/S program is typically a centralized mechanical processing, the interaction is relatively low
b/S information flow can change, b-b b-c b-g and other information, flow changes, more like the trading center.

The relationship and difference between BS and CS