[Year 12 IT Apps] Quick Quiz - Decision trees

[Litsa Tzelepis]

hi mark, not sure if this will help:

http://books.google.com.au/books?id=_8nxa_xrdmgC&pg=PA14&lpg=PA14&dq=decision+trees+logical&source=web&ots=MRIULS3ICO&sig=oxl_TSz2RIvxruODWbpTwqX3C5Y&hl=en#PPA14,M1

litsa



----- Original Message ----- 
From: "Mark Kelly" <kel at mckinnonsc.vic.edu.au>
To: "Year 12 IT Applications Teachers' Mailing List" 
<itapps at edulists.com.au>
Sent: Tuesday, April 08, 2008 8:31 AM
Subject: Re: [Year 12 IT Apps] Quick Quiz - Decision trees


> Thanks, Andrew and Robert.  I Googled for "Logical design tools" and it 
> came up with zilch.  It seems to be a concept unique to VCE IT  :-)
>
> On a similar note, the accepted industry SDLC seems to be rather at odds 
> with the one in our study design - for example, "feasibility study" 
> usually appears as a separate initial step, and "maintenance" is usually 
> the last step.
>
> I occasionally get this nagging feeling that we're playing in a theory 
> world that doesn't quite match the reality of industry.
>
> Timmer-Arends wrote:
>> Hello Mark
>>
>> all of the below plus DeMarco considered decision trees/tables to be one 
>> way of specifying the actual process of a dfd 'process bubble' (ie, once 
>> you've unpacked all of the system to the lowest level of the dfd, you 
>> then have to specify what processing actually takes place, or is to take 
>> place, to transform the input to output - he called them minispecs). 
>> Therefore logical design tool is probably the best classification.
>>
>> Regards
>> Robert T-A
>>
>> ----- Original Message ----- From: "WEIR Andrew" 
>> <andrew.weir at thomascarr.vic.edu.au>
>> To: "Year 12 IT Applications Teachers' Mailing List" 
>> <itapps at edulists.com.au>
>> Sent: Monday, April 07, 2008 1:26 PM
>> Subject: RE: [Year 12 IT Apps] Quick Quiz - Decision trees
>>
>>
>> Mark
>> To me logical is what helps to make the decision clearer. I.e. how is
>> information flowing not what the information is flowing through.
>>
>> A physical tool is about what is required. What devices.
>>
>> I.e. the decisions about the house I want to build VS the physical plans
>> and wiring?
>>
>> So I would go with logical design.
>> (but happy to be proven wrong)
>>
>> Regards
>>
>>
>>
>> Andrew Weir
>>
>> Information Technology Co-ordinator
>>
>>
>>
>> Thomas Carr College
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>>
>> -----Original Message-----
>> From: itapps-bounces at edulists.com.au
>> [mailto:itapps-bounces at edulists.com.au] On Behalf Of Mark Kelly
>> Sent: Monday, 7 April 2008 1:08 PM
>> To: Year 12 IT Applications Teachers' Mailing List
>> Subject: [Year 12 IT Apps] Quick Quiz - Decision trees
>>
>> Would you clever people categorise a decision tree as a logical or
>> physical design tool?
>>
>> It seems to me to be the former since it's formulating the desired
>> behaviour of equipment but is not trying to set out how the behaviour
>> will be carried out or how the system will be built.
>>
>> Cheers
>> Mark
>>
>> -- 
>> Mark Kelly
>> Manager - Information Systems
>> McKinnon Secondary College
>> kel AT mckinnonsc.vic.edu.au
>> McKinnon Rd, McKinnon 3204, Victoria, Australia Direct line / Voicemail:
>> 8520 9085 Fax +613 9578 9253
>>
>> Webmaster - http://www.mckinnonsc.vic.edu.au IT Lecture notes:
>> http://vceit.com
>> Moderator: IT Applications Mailing List
>>
>> Only those who swim against the current know the current is there.
>
>
> -- 
> Mark Kelly
> Manager - Information Systems
> McKinnon Secondary College
> McKinnon Rd McKinnon 3204, Victoria, Australia
> Direct line / Voicemail: 8520 9085
> School Phone +613 8520 9000
> School Fax +613 95789253
> kel AT mckinnonsc.vic.edu.au
>
> Webmaster - http://www.mckinnonsc.vic.edu.au
> IT Lecture notes: http://vceit.com
> Moderator: IT Applications Mailing List
>
> A conclusion is the place where you got sick of thinking.
> If you Declare War - is it integer or boolean?
>
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