With the deepening of library automation, networking and modernization, the library has used barcode technology to realize the automation of book purchasing, cataloguing and borrowing. Then, can the management of journal literature also use barcode technology to realize the automatic management of journal literature?

We know that bar code technology is an automatic identification technology that was produced and developed in the application practice of computer, and was proposed by American Joe Woodland in 1949. A barcode is a computer-readable information symbol. It is composed of a group of different widths, different reflections, parallel adjacent bars and spaces combined according to certain rules, reflecting and representing a specific content code. Once the technology was created, it quickly spread.

In 1988, my country established the China Article Numbering Center. Among them, ISSN/EAN, an authoritative journal code, has been widely promoted and adopted in national journals. This provides the prerequisites for the automatic management of journal documents. Therefore, the author believes that it is completely feasible to use barcode technology to realize the automatic management of journal documents.

International Journal ISSN/EAN Barcode and Its Structure The International Journal ISSN/EAN Barcode is a subsystem of EAN Barcode. It was established in consultation with the International Centre for Serials Data System (ISDS) and the European Article Numbering Association (EAN). The main function of the international journal bar code is to convert the information such as the international serial number (ISSN) and issue number of the journal into the bar code form of EAN, and finally achieve the online input processing of the light pen. The international journal ISSN/EAN barcode is composed of a main part and an additional part. The main part consists of four parts: journal prefix code, journal variety number, barcode age number and check code. Its specific structure is:

The prefix code of the journal: 2 digits, all ISSN/EAN barcodes have a common prefix "977".

The variety number of the journal: 7 digits, that is, the first 7 digits of the ISSN international standard number.

Age number of barcode: 2 digits, indicating the age of the journal using barcode, the expression is 00-99.

Check code: 1 digit, its value is calculated from the previous 12 digits.

Additional part: 2 digits, indicating the current issue number or month number of the journal. The expression is 00. For example, "World Economy" (Monthly) No. 8 in 1998, its barcode (see Figure 1) is "977100296200908".

"977" is the prefix code of the journal; "1002962" is the variety number of the journal; "00" is the age number of the barcode; "9" is the journal check code; "08" is the issue number of the journal (the 8th issue) ). The bar code of the 17th issue of 1998 "Democracy and Legal System" (fortnightly) (see Figure 2) is "977100317200117". Its additional part "17" is also the issue number (17th issue) of the journal. The bar code of the 35th issue of "Watch" (Newsweek) in 1998 (see Figure 3) is: "977100257200035>". "35" also refers to the sub-number (issue 35).

The bar code of the 4th issue of 1998 of "Economic System Reform" (bimonthly) (see Figure 4) is: "977100601200708". The additional part "08" is the monthly number (August) of the journal, showing the fourth issue. Quarterly as well.

Feasibility and advantages of international journal ISSN/EAN barcode in journal document management 2 1 Feasibility of ISSN/EAN barcode. International Journal ISSN/EAN barcodes are unique barcodes that identify journal articles to a certain issue of a journal. The uniqueness of ISSN/EAN makes it possible to automatically identify journals by computer.

At present, the ISSN/EAN barcodes of domestic open-issued periodicals are printed on the front cover or back cover, which is very eye-catching, which provides convenience for computer scanning and input, and saves the trouble of searching through keyboard input.

Recognition is fast.

Barcodes are line labels consisting of dots, lines, or spaces. It has some binary characteristics like the characters of the host, so there are few input conversion links; moreover, the barcode reading adopts scanning mode, and the scanning input speed is between 1600-1900 characters/min, which is beyond the keyboard input. , so the input recognition speed is greatly improved. 24 Entry data is extremely reliable. The ISSN/EAN barcode has a check digit, which can check the entered information correctly. Even if the entry speed is high, it can prevent misreading and omission of information. Under the condition of poor printing quality and scanning environment of barcode, the error rate of information is only one in three million.

The specific application of the international journal ISSN/EAN barcode in the library The specific application of the barcode requires an automatic scanning and identification processing system composed of a light pen barcode reader, a microcomputer and a periodical management database, and an electronic scanning and identification processing system composed of several automatic scanning and identification processing systems connected through the network. data exchange system. The basic working process is: scan the ISSN/EAN barcode on the journal with a light pen (or scanner), and automatically convert the binary code identifiable by the computer and input it into the journal management system of the computer for processing. According to the decomposed information, we can automate many aspects of journal management.