1、 Construction of network platform
The first is the construction of the network hardware platform. In small and medium-sized enterprises, the number of computers is small, and the distribution of computers is often concentrated, and WAN interconnection technology is rarely used. At present, the mainstream technologies in LAN include Ethernet, FDDI, ATM, among which Ethernet is widely used because of its low price and convenient implementation. However, Ethernet network speed can be divided into 10M, 100M, 1000M, shared network and switched network. At this time, we must adhere to the principle of applicability, because the market competition makes new technologies emerge constantly, and the product price drops quickly. Even if we adopt new technologies months ago, these technologies will become obsolete in less than a few years. At the same time, when we choose other network products, we must also adhere to the principle of applicability and meet the application needs. Secondly, the construction of the network software platform. Since the Intranet system uses Internet technology, it must be based on TCP/IP protocol, and on this basis, HTTP is used as the transmission protocol. All information in the enterprise is published on the Web in HTML format. At present, the relatively mature network operating systems include NetWare, Windows NT and Unix.
2、 Selection of application platform
In enterprise applications, the message platform and database platform can meet most applications. If the enterprise's main application is office automation system, it should establish a message platform. Currently, the most mature office automation systems mainly include Lotus Notes, Exchange Server and Groupwise. Lotus Notes and Exchange Server can run on the Windows NT platform. Both products provide groupware functions, making it possible for enterprises to work together internally. Lotus Notes products have been introduced into China for a long time, and the developed application system is also relatively mature. However, under the intranet environment built by Windows NT, Lotus Notes releases its integration through IIS, which is not sufficiently integrated with the widely used personal office software Microsoft Office. On the contrary, Exchange Server has obvious advantages in this respect. In terms of database selection, many information managers refer to Oracle, Informix, Sybase, Foxpro, Foxbase, etc. However, for small and medium-sized enterprises, large databases such as Oracle and Informix cannot play their advantages and are expensive. On the other hand, a large number of enterprises use Foxpro to write applications. In the Internet environment, all database information is published through the Web in HTML format, so the connection between the database and the Web server is particularly important. Desktop databases such as Foxpro and Access cannot meet this requirement. Microsoft's SQL Server should be a wise choice. It is a relational database for small enterprises and has good integration ability with IIS.
3、 Development of application system
Due to the different situation of each enterprise, Website construction Its application systems vary widely. According to their classification, there are generally MIS system, OA system, financial management accounting system, CAD/CAM, etc. When designing these systems, we must consider the intranet environment, try to use Web technology and three-tier development technology, so that they can be integrated in the intranet environment, so that each system can be related to each other, and each application module can be functionally independent and easy to integrate. Another daily task of intranet development is the development and maintenance of web pages. Because in the Intranet, all information departments are released through the Web, and enterprise information is constantly changing and updating. Therefore, static and manually maintained web pages cannot meet the requirements of intranet. Dynamic web pages can be completed through CGI, ISAPI and ASP. CGI is not a good choice because its performance drops significantly when the load increases. Because Microsoft ISAPI requires to master the C++programming technology, many technicians are discouraged. The ASP technology introduced by Microsoft in IIS3. 0 makes it easy to compile dynamic web pages, and it can use VBScript, JavaScript and other scripting languages to flexibly access the database, making the maintenance task of web pages easy.
