- entity relationship model
- entity-relationshimodel, er model
- entity-relationship model
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实体关系模型的英文
例句与用法
- Then date base system is designed which includes analyzing professional work flow , designing entity - relationship date model , building date base dictionary , designing data flow and fulfilling specifically system function
接着进行系统数据库设计，主要做了业务流程分析、实体关系模型设计、建立数据库字典、数据流程设计和系统功能的具体实现。 - Database of data warehouse and traditional operational database are compared in this paper , then the design of " normative " operation system is reviewed , four typical data models are introduced - entity - relationship model 、 object model 、 dimensional model and star model
摘要比较了数据仓库数据库与传统操作型数据库，回顾了“规范的”操作型系统设计，介绍了四种典型的数据模型实体关系模型、对象模型、维模型和星型模型。 - By using work - flowing concept , the system has be designed by analyzing its working flow in fact with entity - relation model and data flow methods . by analyzing every methods and finding their key steps the modules is designed . for calculating the weights , the factor ' s standardization , and the scores the statistics and fuzzy mathematics methods are imported
在系统设计中引入工作流概念，结合农用地估价的实际流程运用实体关系模型法与数据流程分析法对系统进行总体设计，在具体的功能模块设计中对每一种估价方法关键步骤与特殊算法进行分析，特别在权重计算方法、因素标准化、总分值计算等重要步骤中引入统计学与模糊数学计算方法，使估价方法更具有客观性。