本文结合搜索、数据库、网络等多种技术，实现了用于高速铁路旅客信息系统的新闻搜索引擎，该引擎为高速列车提供实时新闻。

Adopting search technique, database technique and network technique, the thesis realizes the news search engine that applies to the system and provides real time news for fast train.

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数据库是所有信息系统的核心，数据库的安全通常是指其中所存数据的安全，是网络安全、信息安全的重要组成部分。

The database is the core of all information systems, the security of the database usually refers to the security of the data, which is an important part of network security and information security.

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以《管理信息系统》数据库毕业设计为例，探讨了网络环境下数据库设计的范式要求和网络要求。

Taking Management Information System (MIS) database graduation design on the network as the example, this paper discusses the normal form requirement and network requirement in this kind of design.

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