[Year 12 SofDev] Oliver's Mexican Cantina

[Timmer-Arends]

Hello all

just a small point: if the diagram below is a CONTEXT diagram then there should be NO data store shown. It's either part of the system under consideration, in which case it is inside the circle and not shown, or, it is a source/sink of data for the system in which case it is shown as a box.

Regards
Robert T-A
  ----- Original Message ----- 
  From: Allan Barnes 
  To: 'Year 12 Software Development Teachers' Mailing List' 
  Sent: Thursday, July 28, 2011 2:03 PM
  Subject: Re: [Year 12 SofDev] Oliver's Mexican Cantina


  Hi Mark

   

  To my thinking the second terminator is the kitchen display and not the software itself. This is because (IMHO) the software is the method of transmitting the text file containing the order whereas the kitchen display is if you like the end user. Happy to be shot down in flames though. My 1c worth.

   

   



   

   

   

   

   

  Kind regards

   

  Allan Barnes, CEO

  Australian Institute of Education and Training

  P.O. Box 171

  Brunswick West 3055

  Melbourne, Victoria

  Ph: (03) 9387 2051

  FAX: (03) 9387 3470

  Mobile: 0409 428 221

   

   

   

  From: sofdev-bounces at edulists.com.au [mailto:sofdev-bounces at edulists.com.au] On Behalf Of Mark KELLY
  Sent: Thursday, 28 July 2011 1:43 PM
  To: Year 12 Software Development Teachers' Mailing List
  Subject: [Year 12 SofDev] Oliver's Mexican Cantina

   

  Hi all. I'm playing with an SRS based on the Cantina (study design p.84).

  I've got to the context diagram, and I've attached a first draft.  I'm not 100% of a couple of things:

  1. I have excluded the customers as an external entity since they don't interact with the system: the waiter does.

  2. I included the transmission software as an external entity since it takes the text file from the ordering software.  But if the text file is saved should it then be considered outside of the system rather than an active data store within the system?  In that case, the transmission software should not be included at all.

  Any ideas?

  Cheers
  Mark

  -- 
  Mark Kelly
  Manager of ICT, Reporting, IT Learning Area
  McKinnon Secondary College
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