Based on analysis of function demand and system data, a general structure of information system is designed. And the types and hierarchy structure of system data models were studied.
在系统功能需求和数据需求分析的基础上，进行了系统总体结构设计，并研究了系统数据模型类型，提出了系统数据模型的分层结构。
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。
On the basis of currently existed concept designing method of mechanical product based on layer analysis of function, a kind of implementation method for fuzzy synthetic judgement was introduced.
在现有基于功能层次分析的机械产品概念设计方法的基础上，介绍了一种模糊综合评判实现方法。
On the basis of the analysis of function demand and system data, a general structure of the information system was designed. And the types and hierarchy structure of system data models were studied.
在系统功能需求和数据需求分析的基础上，进行了系统总体结构设计，并研究了系统数据模型类型，提出了系统数据模型的分层结构。
On the basis of the analysis of function demand and system data, a general structure of the information system was designed. And the types and hierarchy structure of system data models were studied.
在系统功能需求和数据需求分析的基础上，进行了系统总体结构设计，并研究了系统数据模型类型，提出了系统数据模型的分层结构。
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