The paper has mainly introduced the problems during the process of cataloging when the data downloading,and put forward the existing problems and solutions for these problems.

This paper has mainly discussed the main reasons that influence the quality of periodical cataloging and attached great importance to the introduction of ways to enhance the quality of periodical cataloging,such as MARC data downloading,periodical database search,E-mail consultation,Baidu and Google searching,periodical network searching,together with traditional reference books.

This paper has expounded the fact that downloading external data brings about speediness and effectiveness of cataloguing Chinese books,analyzed a series of problems existed there from and summarized differences,advantages and disadvantages in downloading data for cataloguing purpos

The advantages and disadvantages of computer cataloging using the data downloaded from CNMARC were induced,the common problems in computer cataloging using the downloaded data were pointed out,and some suggestions were proposed for the construction of standard downloading data.

Algorithms of mining data records from website automatically;

The Research and the Design of Information System deal with Aircraft Data Records

From the requirement to the important parameters of ship-to-air missile weapon system,the course and method of data record have been analyzed.

A brief function introduction of data input and report form print program for water chemistries observation item in Wang 3 well and Wang 4 well;

The practice shows that the system ensures the accuracy and efficiency of data input and verification.

This paper analyzes the shortcoming of common program design of data input,then explains an advanced program design method of data input which can do work more effectively,a spesific code of this design method is been given at the end of this paper.