help1402

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help1402

This forum is provided to promote discussion amongst students enrolled in CITS1402 Relational Database Management Systems.

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UWA week 35 (2nd semester, week 6) ↓

ER diagrame notation (all 4)

2:13pm Thu 29th Aug, ANONYMOUS

Hi , I just wanted some clarification. For this unit, we are only using EML notation for ER diagram right? In EML notation, do we use diamond shape ? I saw in lecture slides where ternary relationship is presented in diamond shape. Thanks

ER diagrame notation (all 4)

2:40pm Thu 29th Aug, Mehwish N.

It is called UML (unified modeling language). Yes a ternary relationship is represented by a diamond. However, entities are represented by rectangles. Please also make sure you know how multiplicities are represented. Cheers. ANONYMOUS wrote:

> Hi , I just wanted some clarification. > For this unit, we are only using EML notation for ER diagram right? > > In EML notation, do we use diamond shape ? I saw in lecture slides where ternary relationship is presented in diamond shape. > > Thanks

ER diagrame notation (all 4)

2:52pm Thu 29th Aug, ANONYMOUS

Thanks. Ovals are not used in UML notation right?

ER diagrame notation (all 4)

7:24pm Thu 29th Aug, Adam W.

Hi, Having guides/cheat-sheets can be really useful, so have a look at pages like this for reference: https://www.tutorialspoint.com/uml/uml_basic_notations.htm Thanks, Adam. ANONYMOUS wrote:

> Thanks. Ovals are not used in UML notation right?

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