help1402

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help1402

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

Please consider offering answers and suggestions to help other students! And if you fix a problem by following a suggestion here, it would be great if other interested students could see a short "Great, fixed it!" followup message.

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UWA week 35 (2nd semester, week 6) ↓

Fan trap and Chasm Trap (all 3)

5:06pm Thu 29th Aug, ANONYMOUS

What is the best way to identify fan trap and chasm trap in ER diagram early in the conceptual modelling designing stage? Do I have to draw semantic net with some possible data to be able to identify it?

Fan trap and Chasm Trap (all 3)

5:52pm Thu 29th Aug, Mengxi L.

You are encouraged to identify fan trap and chasm trap in the first project. But don't worry, you will be provided a solution ERD after project1. You can proceed with Project 2 using this ERD.

Fan trap and Chasm Trap (all 3)

7:19pm Thu 29th Aug, Adam W.

Hi, One obvious way to identify fan traps early, is the M:1:M relations, and for Chasm is there being the presence of optional participations, this is a good post to look over that goes into some detail: [stackoverflow]⬈ Thanks, Adam. ANONYMOUS wrote:

> What is the best way to identify fan trap and chasm trap in ER diagram early in the conceptual modelling designing stage? > > Do I have to draw semantic net with some possible data to be able to identify it?

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