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Graduation Project-Title: Network Solutions for Small and Medium-sized Enterprises
Network solutions for small and medium-sized enterprises

Keywords: SME network solutions

Generally, enterprises with less than 500 employees are collectively referred to as small and medium-sized enterprises. Equipment, capital and management are several difficult problems in the growth of small and medium-sized enterprises. Lack of funds is a common problem of small and medium-sized enterprises. How to realize the most efficient operation of enterprises and personnel under the condition of limited capital investment is an important topic faced by small and medium-sized enterprises. In the process of management, small and medium-sized enterprises need to better solve the problems of small office resources, user access, information feedback and logistics management. Therefore, in today's information society, it is necessary to establish a reliable, manageable and low-investment information transmission channel.

Some enterprises believe that informatization means buying computers and printers, building small databases and training or increasing full-time employees to use them. This practical application effect is not essentially different from the previous mode of manual recording and management, but it has changed from paper documents to electronic documents. Many enterprises are uneasy about electronic documents and still keep paper documents as backup. Instead of improving work efficiency, they use more manpower to make enterprise informatization a facade. The effect of investment increase is not significant, and business leaders turn to think that informatization is not only insignificant, but also ineffective.

However, in the transformation from the traditional planned economy, many small and medium-sized enterprises obviously don't realize that the network, to be exact, is the key factor to enhance their core competitiveness. Because everything today is "cruel" to prove that the network construction of small and medium-sized enterprises will directly affect the future survival of enterprises. Let's take a look at the development of the network. The development of network has gone through the process from e-mail, online advertising inquiry, enterprise network and online transaction (EDI) to the present e-commerce and electronic world. And what is the positioning of domestic enterprises now? How many enterprises have established e-mail systems? How many advertisements have been posted online? Not to mention online transactions, e-commerce and so on. Network applications are not only online transactions, online advertisements, but also online dating, shopping and so on. We should fully realize the role of network in enterprise development and promoting productivity. In terms of technology application and innovation, all countries in the world have their own advantages. If we can gather their achievements, it will greatly promote human progress. A typical example is that Boeing 777 was designed online by technicians from several countries in the world. Another example is the latest physics experiment on the American space shuttle, which was designed by technicians from China, the United States, Russian and other countries, in which the network played a very important role.

Using network to improve management level. Shorten product development cycle and promote product upgrade. The life cycle of technology and craft in modern society is getting shorter and shorter, and the time is too short for people to adapt, whether it is the style of cars or the upgrading of computers. Only by communicating with the outside world through the network, feeling the market information and integrating your own behavior into the global market behavior can you not lag behind others. In the process of global economic integration, any enterprise must live in the international market competition from the day of its birth. If there is no computer network, it is hard to imagine how future enterprises can survive. As an important production tool in the era of knowledge economy, the network has brought great development opportunities to developed countries, but it has also invisibly widened the gap between the rich and the poor in the world again. In some backward countries in the third world, there are only a handful of computers connected to the internet because of the low computer penetration rate and backward economy. According to the latest data of Internet Society, nearly 70% of computers connected to the Internet are located in the United States, while only 30% are located in so many countries outside the United States, which makes most countries in the world, especially the vast third world countries, face one of the most important magic weapons in the knowledge age-the lack of information, and the result will inevitably affect their development speed. From this perspective, the Internet has widened the gap between the rich and the poor in developed and developing countries.

At present, in the informatization process of domestic enterprises, there has been a strong "gap between the rich and the poor". On the one hand, large users in the financial and telecommunications industries spare no effort in network investment and application. Whether it is the construction of network platform or the development of application system with large investment, the level is close to that of foreign advanced enterprises, who have both information and wealth. On the other hand, many small and medium-sized enterprises in China have become "information Gobi" because they don't understand the functions of network applications. Even many enterprises don't know what the network is, and they are gradually losing the technical platform on which the enterprise will develop in the future, losing information and wealth.

Some enterprises also think that network construction is necessary, so they have also built their own network platforms, and even invested huge sums of money to build the most advanced gigabit backbone platform, but they have not invested much in network applications, which makes enterprises have high-speed information superhighways but no cars running on the road. Network is limited to simple applications, such as file sharing. In essence, the network platform is only the "road" of informationization, and the network application is the "car" on the road. Only roads have no cars, and the built high-speed network system has become a decoration.

Informatization and networking are the general trend of development. The construction of network platform is important, but the application of networking is more important. Network application is a very broad concept, which can cover almost every application field. Product design and network can realize organized design cooperation. In manufacturing and production, the network can use the data of electronic design to direct automatic production. Material circulation, the network can achieve high-speed information * * * * and resources * * * * ..., while the financial, post and telecommunications industries can't survive without the network. For small and medium-sized enterprises, it is unrealistic to carry out such an all-round network application, and the investment is too large. We believe that, firstly, it is the first and most important step to realize office automation, improve the operating efficiency of enterprises and communicate with all departments quickly. Through office automation, firstly, the workflow of the enterprise is straightened out, the efficiency of management is improved, the bottleneck of work operation covered by daily complicated office offices is exposed, and the leaders of the enterprise can see the situation clearly, solve key problems and improve their competitiveness. Network office can also make enterprise leaders fully realize the advantages of network application, make plans for further information transformation of enterprises and make enterprises develop continuously.

Network office application

Our understanding of office is not only the office behavior of enterprise management, but also the utilization and collaborative work of information resources in the process of product design, production, sales and trade. This broad office concept includes the comprehensive application scope of resource sharing, query and exchange.

The application of computer in office is usually called "office automation". In the early days of computer application, simple word processing software plus printers, photocopiers and other equipment constituted "office automation". With the development of computer network, the network enjoys the storage of files and electronic documents, forming a new concept of network office automation. However, with the further development of network application, network office automation has greatly changed the traditional office mode and provided more efficient office means.

The first stage of network office automation refers to the digitization of all kinds of office equipment, including printers, fax machines, digital copiers, digital cameras, liquid crystal displays, digital projectors and small PBX centers. The second stage refers to the reorganization of the functions of these office equipment close to the network. In terms of functional reorganization, the overlapping part of traditional office equipment (copying = scanning+printing; Fax = scanning+printing+transmission) realizes the enhancement of component functions by means of network resource platform and * * * sharing means, and then realizes the combination of these powerful component functions by means of network to meet the needs of different offices, and truly realizes convenience, efficiency and low cost; In the third stage, digital office will completely eliminate the restrictions of PC on office and realize the intelligence of all kinds of peripherals. Telecommuting will become a common way of working, and there will be a large number of devices using network resources in the office, such as IP telephone and IP fax, so that the office is no longer limited to a small office and can work anytime and anywhere.

With the rapid development and popularization of network technology, the characteristics of high efficiency, low cost and mobility have increasingly become the requirements of modern office. The previous office model was centered on telephone and centralized meetings, plus official documents, pens, calculators and fax machines. The office automation mode with PC application as the core and various office equipment as the supplement provides higher efficiency than before, but the basic mode is still paper transmission. The enjoyment of information still depends on meetings, manual inquiries and feedback. The appearance of the network has greatly improved the speed of information sharing and information transmission, thus forming a modern office model with the network as the core, that is, a series of networked applications based on network printing, network fax, e-mail, network database resource sharing and so on. Information can be transmitted by e-mail, and leaders at all levels of enterprises can inquire about personnel, materials, logistics, customers or cooperative units, and even financial sales through the network according to their own authority. Collecting employees' opinions and suggestions, issuing enterprise announcements, openly discussing certain decisions, and sharing project collaborative work resources can all be carried out conveniently through the network, which not only reduces the intermediate links of work and saves manpower occupation, but also improves work efficiency, and the sharing of collaborative work resources greatly reduces the disorder in work.

People on business trips can also connect to the intranet of the enterprise through telephone lines, directly get their own emails and instructions, know the latest announcements of the company, get all kinds of company information needed for business trips, feedback the progress of business trips in time, and let colleagues who work together know the latest information in time. Here, the concept of equipment is ignored and replaced by the concept of network application and solution. People no longer care about specific printers, fax machines, photocopiers and other equipment, but pay attention to how to make full use of and give full play to the network office application system of enterprises to promote work.

Obviously, the most direct benefit brought by networked office applications is to greatly improve office efficiency. Office is no longer limited to the office, and office workers are no longer busy shuttling in the corridor. Networked office reduces decision-making mistakes with its high-speed information transmission, and at the same time breaks the management principles based on the traditional communication system, resulting in a new flat management model, which is of great significance to the modern management of enterprises. Because of the high efficiency and speed of network office, the chances of information resources being reused are greatly increased, thus reducing the management level, increasing the number of subordinates that each supervisor can directly control and reducing the management level. Advanced network computers can collect and process the transmitted information in time, which can not only help supervisors understand their subordinates' work earlier and more comprehensively, so as to put forward opinions and suggestions in time, but also enable subordinates to know more about the information related to their own work, so as to better handle their own affairs independently. Network can expand the management scope of managers and reduce the management level of managers. The reduction of management levels further improves the operational efficiency of enterprises, and also enables senior leaders to control the work of enterprises more effectively and promote the development of enterprises.

Enterprise office networking, can not ignore the use of the Internet. The combination of Internet and enterprise internal network broadens the vision for enterprises and provides an updated development direction.

Internet is a global Internet and a huge treasure house of information resources. Enterprises can not only discover new technologies and new business opportunities from the Internet, but also cooperate with other enterprises, exchange information and develop together quickly and conveniently through the Internet. Internet also provides a new place for enterprises to show themselves, and also provides a medium for enterprises to provide fast services to users around the world. Developing e-commerce trade on the Internet has increased new business opportunities for enterprises.

Application of network office

In the process of office work, the network can play a powerful supporting role in the following aspects:

1. Enjoy the file * * *

2. Print * * *

3. Network fax

e-mail

5. Remote access

6. Use of the Internet

7. Document production and transmission

8. Report production and transmission

9. Full-text retrieval of documents

10. Resource management of customers or related cooperation units

1 1. Personnel management

12. financial computerization

13. Configuration of public facilities and equipment

14. Information release query

1. Enjoy the file * * *

File sharing means that only files between computers in the network can access each other.

At the beginning of computer application, if files need to be exchanged between computers, they can only be stored on floppy disks and then transmitted on floppy disks. After the emergence of computer networks, files between networked computers do not need to be transferred to floppy disks, and files can be sent directly through network cables. It is a convenient process to enjoy files. For commonly used * * * files, they can also be placed on the network server. A network server is a computer that all networked computers in the network can access. The server can control the file directories that networked computers can access according to the access rights assigned by the network administrator. In this way, it is convenient to share network files and control them accordingly, so as to ensure that important files will not be accessed by any personnel and ensure the safe use of files.

The earliest server file * * * sharing was to put * * * files in a directory on the server and set access rights to these directories for networked computers to access. In this way, for networked computers, as long as the corresponding connection relationship (mapping) with some directories of the network server is set, networked computers can access as if they were accessing a directory on their own computers. However, with the development of computer network application, this file storage sharing method has gradually withdrawn from application. For office information files, the problem of inconvenient use is becoming more and more serious because such files cannot provide full-text retrieval and other functions. However, some low-level database software still needs to run in this way, and some * * * software can still be used in this way, so file sharing is still an important part of computer network applications.

File sharing is the most basic application mode in network applications. As long as there is a computer network, file sharing can be realized. At present, MS Windows 2000 Server, Novell Netware, UNIX and other network operating systems all support file sharing in server mode.

The sharing of files makes the reuse of files very convenient. We often refer to the format and content of similar documents in the past to make many office documents, and only the content that has not changed much will form new documents. If we don't use computer files, we need to make changes to the original files and then copy them again. Once you make a mistake, you must copy it again. Editing computer files is very simple. You can insert and delete text directly at the position that needs to be modified, and the computer will automatically typeset it to form a beautiful new document. File sharing greatly improves the reuse value of old files. If we cooperate with full-text retrieval, the office efficiency will be improved rapidly because of the existence of the network.

2. Print * * *

In the period when there was no computer network, almost every computer was equipped with printer equipment, otherwise the documents generated by office work could not be printed. Storing files on floppy disks and then printing them with printers configured by other computers is too cumbersome for most people, so almost all people with computers try their best to buy printers to facilitate their own printing.

Every computer equipped with a printer will undoubtedly greatly increase the investment in computer applications. Printer is a kind of equipment with low utilization rate. Compared with office computers, the working hours of printers are extremely limited. Therefore, making full use of printer resources and reducing the number of printers purchased are the means to improve the investment benefit.

The realization of printing * * * makes every office or even every office floor only need to be equipped with one or several printers, which can meet the printing needs of the whole office environment. A dozen or more computers * * * share a printer, which is easy to realize in the network environment. According to the investment of more than a dozen computers with printers, it is enough to buy a fast laser printer and network equipment, and the return on investment of network equipment is not only a kind of network printing, so it is a very cost-effective investment method.

Printing * * * will not increase the operation difficulty of computer users. Once the configuration is completed, it is exactly the same as using a local printer.

3. Network fax

Fax is also a common means in daily office applications. The usual practice is to configure a fax machine in a certain range of office areas for all personnel to use together. When an external fax is received, someone needs to inform the receiver.

In today's office, handwritten faxes are rare. Most of the practice is to edit a fax on the computer, then print it out, and then send it to the fax machine together with the printed document. If you need to send faxes in batches, that is, send a fax with the same content to different fax machines, and the fax machine needs to send it in front of the fax machine continuously, which is obviously a difficult problem with relatively high work intensity.

The computer sends a fax, so that we can get rid of the printing step and send the edited fax directly to the fax machine of the other party or fax it to the fax receiving system of the other party's computer through the modem. From this point of view, it can at least save the consumption of printing paper and printer, so it has certain application value.

Network fax is to set up fax server equipment on the network, which can be used by all networked computers. When it is necessary to send a fax, any networked computer (which can also control some users to send a fax) will fax the edited fax directly through the fax server. When there are many people who need to fax at the same time, the fax server can automatically queue up in order, and users who send faxes don't need to care about these and don't need to queue up in front of the fax machine. It is more convenient to send in batches, and many fax server systems support multicast. Moreover, in order to reduce the expenditure of long-distance telephone charges, you can also define half-price time to send bulk faxes to reduce office expenses.

Sending computer faxes and network faxes is not troublesome to use and does not require much training. Just like using a printer, you can print the document to the fax port, fill in the phone number, and complete the fax transmission.

The reception of network faxes is also automatic. Incoming faxes are directly received by the fax server, stored in the server, and distributed through the network by special personnel or front desk administrative personnel according to the fax header. On the one hand, using network fax to receive faxes can reduce the use of fax paper, and more importantly, important faxes cannot be received because the fax machine has no paper, which is more important than saving the cost of paper.

Of course, there are some problems in using computer fax and network fax in China. The main problem is that fax machines in some domestic units do not perform their duties automatically, and fax phones in some small units are also used as ordinary phones, which requires manual intervention, and there are cases where fax machines put some extension numbers inside. At this point, the network fax and computer fax will be invalid. With the development of domestic economy, this situation will gradually improve. But at present, the use of network fax still needs an ordinary fax machine to handle these non-automatic fax devices.

Another problem of using computer fax or network fax is the problem of handwriting transmission and original transmission, but this problem can be transmitted by network fax after scanning handwriting and original with image scanner. At present, the price of popular image scanner is only 1000 yuan, which is much cheaper than fax machine. Similarly, this fax can also be sent by ordinary fax machine.

4. E-mail

E-mail is the most important application mode of the network. Because of the existence of e-mail, the way of global communication has undergone revolutionary changes. Sending information no longer requires long waiting and high postage, and sending information to the other side of the world is only an instant thing. It should be said that e-mail has changed the way of information exchange. E-mail is the most important network application on the Internet. E-mail is one of the most extensive and important applications of computer network at present, and it is also the infrastructure of office automation system.

E-mail is a modern communication method that people use computers to edit, store and transmit information. All kinds of information, such as official documents, private letters and various computer documents, can be sent to the recipients quickly and conveniently by e-mail.

At present, computers have been basically used in the offices of various units. Even where the computer application level is not high, a unit will have at least one computer for printing and typesetting important documents. Therefore, digital documents stored by computers are gradually replacing paper documents.

With the wide application of computers, paper documents are not very important at first. Almost all documents can be saved in the form of computer digital documents except those that need to be signed by leaders. The use of digital files is not only very convenient for query, retrieval and reuse, but also can greatly improve work efficiency and provide a prerequisite for transmission by e-mail.

Most people may think that e-mail is mainly used to send documents over a long distance on the Internet, and it is of little value for internal use, but it is not. We know that many documents don't need to be signed. Often, in the process of forming an office document, it needs to be submitted to the leaders for review many times, submitted to other relevant departments for review, returned after the leaders or other departments express their opinions, and then submitted to the public after revision until they are finally satisfied and become official documents. In this process, there is no question of signature and seal. Therefore, the original documents are written on the computer, and the process of submission and review can be carried out through internal e-mail. Printing does not need to waste paper, nor does it need to be transmitted to all relevant departments. Only when the document comes into effect, it needs to be printed once, signed and sealed, and a piece of paper cannot be wasted in the whole process. For discussions, opinions, suggestions and other contents in collaborative work, because there is no problem of signature and seal, we can rely entirely on the e-mail system. Finally, the formation of manuscripts and the adoption of opinions can be reviewed, copied and pasted through saved emails.

Internal e-mail systems usually include the following layers of security functions:

(1) Strict authentication: No one is allowed to send emails with a false identity, and no one is allowed to steal other people's emails with a false identity.

(2) Reliable encryption measures: In order to prevent email information from being illegally intercepted during transmission, email information should be encrypted and encoded at the sender and decoded at the receiver.

(3) Non-repudiation of sending and receiving emails: Even if the sender and the recipient can't modify the contents of sending and receiving emails and the sending and receiving records (sending and receiving time and sender), they can't deny the corresponding responsibilities.

Due to the above security features, when the computer network is fully applied, some internal documents that used to need to be signed and sealed can completely give up the process of signing and sealing. The person who receives the document can confirm the validity of the document as long as he sees the sender information of the email. Only after logging in with your own password can you use email. People in key positions usually pay attention to turning off the email system after leaving the office, which can effectively prevent others from forging information. In addition, a good internal mail system has digital signature measures, which can also effectively prevent the forgery of mail identity.

Due to the initial stage of computer application, many people may not trust electronic texts enough. In fact, electronic files are very reliable after taking backup measures. Many large foreign companies, including Cisco, the most valuable company in the global market, execute their office documents, notices, circulars, approval documents, etc. Completely through the e-mail system, so domestic enterprises should also be able to fully trust the e-mail system.

E-mail can not only transmit text information, but also computer-generated files, including graphic files, digital images and photos taken by scanning or digital cameras, electronic drawings of CAD design, etc. , can be transmitted instantly through the network, supplemented by internal telephone contact and discussion, and can work together.

Another advantage of e-mail is that it can use the global Internet to send documents, contact customers and promote business development. E-commerce activities can be carried out by combining e-mail with corporate Internet websites. Publicizing the enterprise through the enterprise website and collecting opinions, suggestions, cooperation information and ordering information through email will further promote the business work of the enterprise.

The e-mail system based on LAN not only facilitates the e-mail transmission within the organization, but also facilitates the connection with the outside through the wide area network such as the Internet. Usually, the system provides strict authentication and has good security. Therefore, it is widely used in office automation systems at home and abroad.

At present, the construction of office automation and the application of e-mail in China are developing rapidly. More than half of the central ministries and commissions have established office automation networks and adopted e-mail systems. Rapid delivery of various official documents. Superior institutions often use it to send official documents, information briefings and transaction notices to subordinates, and subordinate institutions often use it to send statistical reports and request reports to superiors. This also fully shows that the e-mail system is secure enough and should be widely used in enterprises.

5. Remote access

Remote access means that a person only connects to the enterprise internal network, not through the network line of the enterprise office, but through the telephone line and necessary equipment (-Modem) to connect to the enterprise internal network from anywhere.

Remote access is usually set for business travelers and small offices in other places. Although these people are not in the location of the enterprise, they can still contact the enterprise through remote access, access the data of the enterprise, obtain the documents of the enterprise and receive their own emails, so the contact with the enterprise still exists. Remote access enables enterprise personnel to use only one telephone line wherever they are, just as if the enterprise is nearby.

When a person encounters problems while traveling, he can connect to the enterprise network through remote access to get the latest information of the enterprise. Even if you encounter a big problem on business trip, you can transmit the problem and related parameters and data to the enterprise through remote access. After the enterprise organizes the strength to solve the problem quickly, it will send the result back to the business trip place, so that the business trip personnel don't have to travel back and forth, which not only saves time, but also saves the fatigue and travel expenses, and improves the work efficiency.