Some technical problems on the production of the CCBD_CD bibliographic database are discussed in detail.The basic consideration of the design of data structure of CD_ROM database is put forward,the file organization and record format of this database are described in detail. The key point of this information retrieval software,such as question processing ,boolean operation and full text retrieval,are also discussed.

The paper gives a detailed descriptions of the features and characteristics for each kind of optical disks.The applications of these optical disks in China,especially the problems and troubles existing in them are summarized as well. Some proposals and solutions are put forward on the basis of analysis of the problem and troubles.

This paper briefly compared the characteristics among the optical disk technology,microform technology and international online information retrieval. Based mainly on the above mentioned technologies, an approach to establish a mixed information storage and retrieval system was introduced in order to take full advantage of them more effectively. It also discussed the strategy for information storage and retrieval of the system as well as the possibility of establishing such
system in China.

This paper presents the design thinking,functions and structure of a user friendly system__ISIS_ES.This system is developed in ISIS PASCAL on basis of the ISIS system and significantly overcomes the shortcomings of the currrent retrieval systems,and improve the rationality,scientificalness and availability of the user interface,thus,the goal of lowering noise,and improving the retrieval quality is attained.

FITS(Flexible ImageTransport System)was recommended as the standard format for interchange of image data among all observatories by Commission 5 at the 1982 General Assembly of IAU in Patras. It supports the transformation for the data types with one,two,three or multi_dimensions.It is not only suitable to astronomical data but also usable to the data in other subjects. The FITS basic form at,the random groups extension and the ASCII table extension for the images and catalogs of astronomical data are described in this paper.

SQL*FORMS is the 4th generation language tool of ORACLE databse system. This article is a summary of practical experiences in applying SQL*FORMS to develope information system.Some techniques of using SQL*FORMS are analyzed and discussed and programming methods for trigger of SQL*FORMS are introduced in detail as well.

The paper discusses the features and system functions of OPAC—the subsystems of library automated systems,from the aspects of evaluation criteria and user interface design.Some suggestions for designing and developing OPACs are also covered.

This paper listed the advanced requirements of library and information application system.Further analysis was mase on the various characteristics user interface in GLIS as an example and its realization methods.

Based on the analysis of the fixed-lenght fields in relational database system,the paper introduce a usable storge and retrieval method to process the flexible-length document information and save the storge space.

This paper introduces the system function and the brief development history of " audio-visual materials management system" (AMMS) which was developed jointly and successfully by Shenzhen Library and Guangzhou Library. It also discusses the design characteristics.

In this paper,the concepts and properties of E-mail including the commands and usage are described.The impact of E-mail on libraries is explored as well.

The article discusses how to co-establish the bibliographic database among small libraries,especially those in the same specialized field. The necessity,feasiblity and essential conditions are briefly introduced.A model is given with a detailed description for the procedures of the system design and what should be careful about.