元数据管理：业务需求、数据模型、ETL 过程设计、用户手册，等等。
Metadata management: business requirements, data models, ETL process designs, user manuals, and so on.
在对用户需求分析的基础上总结了该管理系统的系统功能及主要功能实现方法和业务数据模型。
In the analysis of user needs on the basis of summing up the management system of system functions and features to achieve the main methods and business data model.
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