[Informatics] ERD policy

[Matthew Campbell]

Hi all,



This is great that we have some clarity. However, it seems like this crow's feet notation leaves out the vertical line for "one", which is standard out in industry. I am assuming the exam won't introduce scenarios where relationships are optional and therefore we won't need the double vertical line (exactly one) or zero (optional relationship).



But the bigger question is if our students add these extra lines, which are not in this spec, will they be penalised?



Thanks,



Matt Campbell



Date: Mon, 18 Apr 2016 11:11:33 +1000

From: Mark <mark at vceit.com<mailto:mark at vceit.com>>

Subject: [Informatics] ERD policy

To: "Year 12 VCE Informatics Teachers' Mailing List"

                <informatics at edulists.com.au<mailto:informatics at edulists.com.au>>

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Hi folks. The long-awaited VCAA Entity Relationship Diagram policy <http://www.vcaa.vic.edu.au/Documents/vce/computing/Informatics_examination_ER_Conventions.docx>

is out.



And it includes cardinality with both Chen "1/M/N" and crowsfeet notations!



Finally!



--



Mark Kelly



mark at vceit.com<mailto:mark at vceit.com>

http://vceit.com

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