The logic framework structured design is consisted of theory analysis of function dependency, relation normalization, transformation from E-R model to relation model and data model normalization.

逻辑结构设计包括函数依赖和关系规范化的理论分析、E - R模型向关系模型的转换和数据模式规范化。

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Some basic concepts of E-R relation model and multi-dimension data model are introduced, and design of multi-dimension data model of demand management is described in detail.

本文介绍了E R关系模型和多维数据模型的一些基本概念，着重介绍了需求管理的多维数据模型设计。

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And concrete data store model is achieved with E-R diagram designing data store.

用e - R图设计数据库，并得到具体数据库模型。

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