[Year 12 SofDev] NS Diagrams

[Timmer-Arends]

Hello Jamie

1. NS chart does not use 'begin' 'end' - the begin is the top of the diagram, the end is the bottom
2. I have seen a number of variations on the CASE structure, yours is one of them (although the first looks more like an if..then.else situation, in which case it would be drawn differently; Also where do the variables(?) 'type of event', 'number of clowns', and 'activities' come from?)
3. Is 'calculate' a variable? if yes, then a left pointing arrow is used rather than the equal sign (= is used for comparision only)
    if no, then...?
4. and what are 'Save, print, refresh or quit' - they sound like user options, so if the intention is that these are to be displayed on a screen or something then a word such as 'display' should appear in front of this line.

Hope this helps
Robert T-A
Brighton SC
  ----- Original Message ----- 
  From: Owen, Jamie 
  To: Year 12 Software Development Teachers' Mailing List 
  Sent: Thursday, June 12, 2008 4:28 PM
  Subject: [Year 12 SofDev] NS Diagrams


  Hello to everybody.



  I have attached a students NS diagram, and just wanted some feed back on it. Im not very strong with these so any feedback will be helpful.



  My first question is about the cases. Can the NS diagram be structured in this way?





  Jamie Owen

  ICT Domain Leader

  MacKillop College

  Russell St, Werribee VIC 3030



  Email: jowen at mackillop.vic.edu.au

  Phone: (03) 87345248

  Fax: (03) 87345261

  Mail: PO Box 522, Werribee VIC 3030

  Website: www.mackillop.vic.edu.au



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