[Year 12 SofDev] SD 2011 exam - Part C - the naughty DFD

[Mark KELLY]

This DFD (page 14) has got me wondering...

1. I've always told my kids that each piece of data should have its own
arrow. This DFD has multiple data items on the same arrow.

2. Aren't double-headed arrows forbidden in DFDs?

3. Why are two arrows unlabelled?

Did someone change the DFD rules when I wasn't watching?

-- 
Mark Kelly
Manager of ICT, Reporting, IT Learning Area
McKinnon Secondary College
McKinnon Rd McKinnon 3204, Victoria, Australia
Direct line / Voicemail: +613 8520 9085, Fax +613 9578 9253
kel at mckinnonsc.vic.edu.au
VCE IT Lecture Notes: http://vceit.com
Moderator: IT Applications Edulist <http://www.edulists.com.au/>

Want a good time? Call 0112358. Ask for Mr Fibonacci.
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