中国生物多样性元数据库的研究与开发

The Study and Development of China Biodiversity Metadatabase

元数据是关于数据的内容、质量、条件和其它特性的数据，它是为数据的管理、查询和使用服务的．目前我国还缺乏生物多样性信息交流、共享的机制，因此有必要建立一个提供元数据（ｍｅｔａｄａｔａ） 的信息查询渠道，使用户知道从哪儿能找到所需要的信息，如何使用数据．中国生物多样性元数据库就是这样的一个系统．本文进行了该系统的系统分析、系统设计，并以ＦｏｘＰｒｏ ｆｏｒＷｉｎｄｏｗｓ 开发平台进行程序设计．生物多样性元数据库具有较强的信息查询功能，可按机构目录、主题信息类型、名称和作者这４ 种功能查询．系统具有丰富的信息量，拥有１３３ 个机构、１６０ 个数据集、２６６ 个数据库、７５７ 本专著和６１ 幅图件的信息，提供１ ３００ 多份信息表．

Metadata is referred to information regarding the location, source, content, or other specifies in relation to actual data, which provides services for the management, query and use of actual data. At present, there is no mechanism for biodiversity information exchange and sharing in China. It is therefore necessary to set up an information query channel with metadata to help people know where to find required information and how to use them. China Biodiversity Metadatabase is such a database. System analysis and system design were carried out for the system. The system was implemented on the platform of FoxPro 2.5b for Windows. China Biodiversity Metadatabase possesses powerful information query functions, such as query by institute catalogue, query by thematic information category, query by name, and query by author. The system is rich in information, with data of 133 institutions, 160 datasets, 266 databases, 757 books and 61 maps, providing over 1 300 data sheets.