EER和UML之间的差异 [英] Differences between EER and UML

问题描述

我已经下载了MySQL工作台，可以创建一个EER图表。

这与UML图有什么区别？

此外，ERD在哪里进入？

我在这里找不到与我在此之后匹配的问题。

谢谢。

$我认为UML图你的意思是：UML类图。 [还有其他UML图表]

EER（增强型实体关系）图表模型

用于数据库设计。像类图支持也子类-superclass [specialization和generalization]。 因此，EER图中的实体具有属性不是方法。因为它们只显示纯数据。

实体关系]图是EER的起源。它们来自结构化分析。也用于数据库建模。如何ER成为EER？我认为是因为面向对象的样式炒作。

UML类图

用于面向对象的分析设计

也可用于对数据库建模： em>
[我认为数据库设计的UML配置文件不如ER图]

但在简单的术语中，类是对象实例化的蓝图。 所以类可能有方法 - 函数和属性。软件类肯定有方法，但概念类[用于域建模]可能不。

I'm putting together a visual representation of a database I designed.

I've downloaded MySQL workbench and can create a EER diagram.

What's the difference between this and a UML diagram?

Also, where does a ERD come into this?

I can't find a question on here that matches what I'm after here?

Thanks.

解决方案

I think by UML diagram you mean : UML Class Diagram. [ there are other UML diagrams also]

EER (Enhanced entity–relationship) Diagram-Model

Used for Database Design. Like class diagrams support also subclass -superclass [specialization and generalization]. So entities in EER diagrams has attributes not methods.Because they show just plain data.

Note: ER [entity–relationship] Diagrams are origin of EER. They are from Structured Analysis. Also used for database modeling.How ER become to EER? I think because of Object Oriented Style Hype.

UML Class Diagrams

Used for Object Oriented Analysis-Design.

Can be used to model databases also : there are UML class profiles for it. [I think UML profiles for Database Designs are NOT good as ER diagrams]

But in simple terms classes are blueprints in which objects instantinated . So classes may have methods-functions as well as attributes.Software classes definitely has methods but conceptual classes[ used for domain modeling] may not.

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