[Year 12 SofDev] U3O2 module context diagram

[Adrian Janson]

Hi Shane,

 

I have just uploaded my U3O2 to my site - have a look at what I have for a
SRS (it is quite brief - and only needs to be this size).  Giving them the
DFD or CD is 'OK' I guess, but I feel that these tools alone are analysis
tools and don't say much about what the software solution has to do.

 

Cheers,

Adrian

 

Adrian Janson B.Sc, Dip.Ed, M.Ed
Director of ICT
Melbourne High School, Forrest Hill, South Yarra, Victoria 3141 Australia.
Phone: 03 9826 0711 International: +61 3 9826 0711
Fax: 03 9826 8767 International: +61 3 9826 8767
E-mail: janson.adrian.a at edumail.vic.gov.au

Website: http://www.mhs.vic.edu.au <http://www.mhs.vic.edu.au/> 

Blog: http://jansona.edublogs.org <http://jansona.edublogs.org/> 

 

 

 

 

From: sofdev-bounces at edulists.com.au [mailto:sofdev-bounces at edulists.com.au]
On Behalf Of Shane Dawson
Sent: Monday, 9 May 2011 2:29 PM
To: Year 12 Software Development Teachers' Mailing List
Subject: Re: [Year 12 SofDev] U3O2 module context diagram

 

That seems to be the problem with this new course.  I too am struggling to
produce an SRS for Outcome 2 that fits the criteria without too much
fiddling around.

 

I have decided to just give them the actual CD/DFD just for the module and
not worry about what is happening out in the 'real world'.

 

Not enough thought has gone into what we are being asked to present to
students and I am assuming that there will be more changes occurring after
this year to get it right for next year.

 

Some real actual Professional Development would have been good as well, as
most of Unit 3 Outcome 1 has never been covered before, unless you have
recently graduated from a Computer Science Course, and even talking to them,
they have said that some of it is second year coursework. 

 

 

Shane Dawson

Timetabler, Database and SIMON Administrator

St Joseph's College Geelong
135 Aphrasia Street Newtown Vic 3220
Ph Direct: 03 5226 8141
Mobile: 0425 710 328
Ph Office: 03 5226 8100
Fax: 03 5221 6983
Email: shaned at sjc.vic.edu.au
College Website: www.sjc.vic.edu.au <http://www.sjc.vic.edu.au/> 

compassion innovation  integrity

 

 

 

From: sofdev-bounces at edulists.com.au [mailto:sofdev-bounces at edulists.com.au]
On Behalf Of Mark KELLY
Sent: Monday, 9 May 2011 2:13 PM
To: Year 12 Software Development Teachers' Mailing List
Subject: [Year 12 SofDev] U3O2 module context diagram

 

Hi all. I',m adapting the detailed example of SD U3O2 from the study design
for my own U3O2; I'm fiddling at the edges and not changing the overall
shape of the example where the task is to create a specific module (cost
calculator) in a larger ordering/accounting system that takes order data
from a corporate website.

While getting into creating the SRS I thought the context diagram would be a
doddle.  One external entity, the customer.  The system in the circle  is
the cost calculator module.  One data flow from the customer with order
information. One data flow to the customer with the invoice. Done.

Then I realised that from the module's perspective the rest of the ordering
system might be seen as an external entity since the module has no control
over the system's operation but must exchange data with it.

Then I realised that the system also would see the corporate website as an
external entity for similar reasons. So the customer would interact with the
website which would interact with the system, which would interact with the
module that the students will be writing.

But if I showed the customer providing an order to the website, that would
be a data flow between external entities which we are not supposed to show
in a CD/DFD.

How would you guys interpret a situation like this?

-- 
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

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