In recent years,there are two obvious trends in OCLC' s development:first,OCLC becomes service system served library automation of all libraries in U.S.A.;second,the focal point of OCLC' s function is tranfering to reference service.We can draw inspiration from these trends.

Based on the CCDOC bibliographic database,a method linking citation data to this database through the combined codes between publication,year,page,volume and number is studied.The necessary functions for a citation index database are analysed.A rational data structure to meet these functions is showed and the relationship of the functions with data structure is discussed.The process for building the citation database and the processing strategy  for retrieval are described.

This paper indicates the importance of the index file system of B + tree supporting the variable length records in the library and information automation.Furthermore, one specific method to realize it in the software“General Catalog System”(GCS) is expounded.

Based on the experiment using minicomputer FACOM K650 to the ILS,the automatic operations of startup,routine tasks and exit from system are described in detail.The methods and procedures in realizing these functions of flexible management are introduced.

Based on the study of the computerized automatic classification of Chinese sci-tech books,the article describes the design of a practical expert system for book clasification,the a practical expert system for book classification,the organization of expert experience in classification into a relational knowldge base and a methodology which integrates the rule system with a data management system.This methodology is not only able to manage the large-size rule system and share it
automatically, but also able to process dynamic data easily,making the system operate efficently.

This paper discusses the parallel programming problems in development of library automatic system,which is in the enviorment of NOVELL network and FOXBASE database system.A high speed library automatic system which has fault-tolerance functions is implemented by the communication and control of the network node serve-stations.

This article discussed the process of changing a journal for searching into an electronic version with browsing function,especially the algorithm of the creation of the index file.With the analysis of the characteristics in the contents of the journal for searching and the usage process,the methods for data organization and the realization of the system functions for the electronic version are obtained.

By reviewing the history of modernization that China' s information business has gone through since 70’s it is no wonder to find the great role thesauruses have played.As the product of thesaurus compiling,the thesaurus has provided languages for computer information retrieval,and the effort itself has mobilized everyone in this field,and promoted the process of China' s information business modernization.Through more than one decade of practice,however , it has been found that the thesaurus has many weak points, such as the great difficulty and effort needed for its maintenance, indexing discrepancy, and unsatisfactory retrieval efficiency, The author con-siders that it would be a wise decision to allow the thesaurus to retire backstage and adopt full-text indexing with post-controlled vocabulary , with regard to the abundance of computer re-sources we already have and the requirements of user f riendliness to be met.

The paper introduces the characteristics,composition and main proceeding of the multimedia technology.Author explored the application of multimedia technology in library and information work,and suggested a corresponding strategy.

The paper describes how to adjust some commands and parameters included in CONFIG.SYS and AUTOEXEC.BAT files for running the device communication software,and how to solve some problems while using CD ROM retriveal systems (for HITACHI drives).The two files for other CD-ROM drives are also presented.