[Year 12 SofDev] Exam discussion - Edited

[Kevork Krozian]

Hi Kevin,

 I would expect ( IMHO ) that the missing entity has to be customers.
The drivers' role is really one of a physical one. The fact they
collect data and deliver it, deliver invoices, and deliver products is a
physical consideration and not a logical one. How the data comes in or
is sent out is a physical consideration good for a system flowchart but
not a context diagram or DFD.
To extend the argument, the orders data could be collected via a
portable device connecting to a web server or even online by customers
by logging on to the same web site for orders. They could also print off
receipts when they order.

Hope that helps .   

See you all on Monday .... or Tuesday  .... or Wednesday at the famous
race course for the conference.....!

Take Care


Kevork Krozian
IT Manager , Forest Hill College
k.krozian at fhc.vic.edu.au
http://www.fhc.vic.edu.au
Mobile: 0419 356 034

>>> Kevin Feely <feely.kevin.k at edumail.vic.gov.au> 16/11/2007 9:51 am
>>>
Hi Everyone,
I have added in my response to Adrian's kick off - see below
regards
kev

Adrian Janson wrote:
>
> Hi everyone,
>
> A couple of comments:
>
> Section C, Q1.
>
> I know that there are *reasons* why the Bakers have been included
as 
> an entity (which I don*t agree with * BTW). However, in talking
to my 
> students, this has created some confusion regarding what the missing

> entity should be. Many of my students felt that *Customers* would
have 
> been the correct answer under other circumstances, however, as 
> *Drivers* were also described in the case study as providing data
to 
> the system (in a similar way to the Bakers), they felt that
*Drivers* 
> was correct. What do others think about this?
>
Iam happy with Bakers as an entity - it can be justified, if I had to 
mark a student who had put them in as part of the system Iam sure they

could argue that successfully.
I would have put drivers as the missing entity. they interact with the

system. Customers interact with the drivers so for customers to be 
correct you would have to indicate that the drivers were inside the 
"system" - unfortunately there is no space in the answer to show what 
you regard as part of the system
BUT IMHO since the bakers were an entity it is not logical that then
the 
drivers would be. By putting bakers as an entity you can draw the 
conclusion that sebastian is "the system"

> Q3b.
>
> Using the 2D array was a good inclusion which I applaud, however, the

> question is incorrect * and has the indexes the wrong way around! 
> Kayla has decided to test 1 bread product and 3 ingredients * but
in 
> the test data the array indexes are (1,1), (2,1) and (3,1) *
instead 
> of (1,1), (1,2) and (1,3).
>

Does it not just depend on how you define your rows and columns? Yes 
yours is more logical, but i can work with the way it is on the exam

> Cheers,
>
> Adrian
>

cheers kev
a teacher
>
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