In this article,the authors make a survey of the rapid development of information networkand sociali zed information service in China.And the influence of information network on information service industry is analyzed.Finally,some suggestions for making information industry and information market prosperous in China are presented too.
The paper pointed out the future and electronic information resources that networked-electronic libraries have provided.In networked view,the paper analysed the gap where our country' s library automation compared with advanced libraries of developed countries.Then the paper focus the disscussion on networking environment,networking programme,networking designing considerations and criteria as well as information resource construction and servise.
This paper analyses the meanings and functions of online thesauri. The author considers that the most important thing in the design of online thesauri is to provide various displays to help users select correct terms.Finally,the design of online thesauri of some major information retrieval system are compared.
Classification Thesaurus Integrated System is an advantage information retrieval language.The fundamental function of the concepts searching and semantic relationship displaying of the thesaurus is discussed and the three kinds of behavior of using thesaurus,i.e.relocation,reenter and reconstruction are first puesented in this paper.The improvement on these aspects is discussed in compared with the printed thesaurus and also the potential and approach of it 's further development and improvement is provided.
In this paper,the method of defining Field Select Table by using CDS/ISIS V2.3 software is introduced and on the basis of the knowledge from the author's experience,the definition of Field Select Table,emphatically utilizing and developing formatting language function of the software,by adding prefix-literals and suffi x-literals,combinating *offset and .length command as well as using IF command and function is cxpounded comprehensivelly and detail.
This paper introduces the display and print module,which is programmed in CDS/I SIS PASCAL.This module have functions of arbitrarily displaying and online printing.Some program designing problems,which didn't explained on CDS/ISIS PASCAL book,are also discussed.
This paper gives an explanation on how to equip a multimedia computer,then deals with general process of making the multimedia works,and the requirement in duty and quality to makers.Finally,it presents the objects of study which the library staff require for the coming of multimedia times.
As the computer becomes more and more popular and electronic documents,a new form of documents appears in public,the paper will describe the emegence of disk readers and its management system.
Based on the comprehensive analysis of the latest technologies adopted by the libraries and information centers in developed countries,the paper proposes a basic model for modern libraries and information centers,and briefly describing the function of each part.The application of information technology and new achievement in the field of library and information are expounded through information storage technologies,database technologies,computer technologies, network communicat ion technologies, artificial in telligence and expert system.
The paper discusses the technique of using Foxpro's Memo field to develop variable length records,which overcomes the difficulties of XBASEs in managing DBMS fixed length bibliographic records.This method not only exhances the searching speed,but also saves a lot of disk spaces.It is believed that the DBMS using this technique length DBMS such as Oracle.
The paper is prepared for library automa tion staff who interest in how to converte the DBASE file record to ISO-2709-based CN-MARC data file.The method is described as to prepare a conversion table of DBASE data structure and CN-MARC field table and then a program developed for conversion.Source code in C is included to give some idea on how to develop program of such kind.
This paper analyses and compares the virtues,defects and problems of CD-ROM searching and international online searching based upon services in China.It points out the competitive and complementary nature in them and suggests to bring their strong points into full play,and counteract their own weaknesses.It is very important that the CD-ROM databases must be reasonably imported and fully utilized.