IPT Study Thread

Makro · 28 Oct 2008, 4:00 PM

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I've never heard of "chaining".

JosephW · 28 Oct 2008, 5:29 PM

Same...

What are the implications of home-based work?

mijoe · 28 Oct 2008, 5:33 PM

You guys should try to stick closer to the syllabus.

fallenstar · 28 Oct 2008, 5:55 PM

Quote:

Originally Posted by mijoe

You guys should try to stick closer to the syllabus.

Agreed.
C'mon, don't make us all feel stupid...

Takuto · 28 Oct 2008, 9:06 PM

lol forward/backward chaining is part of the SDD course i think

Q: Discuss the potential advantages of the use of a pilot conversion method over a phased conversion method. (2 marks)

Makro · 28 Oct 2008, 9:15 PM

With, pilot all the bugs and shortcomings can be tested before it's fully implemented. There is also no confusion between systems as everyone in pilot uses 1 system, while those on phased have to use 2 systems.

^ the adv of pilot and dis. of phased. Enough?

mungi · 29 Oct 2008, 8:41 AM

what are some of the software needed to establish a communication link?

**SamD** · 29 Oct 2008, 9:26 AM

Quote:

Originally Posted by tryin2study

What's the difference between forward and backward chaining? Provide examples if necessary.

This is part of the Decision Support Systems option topic. It deals with how the inference engine part of an expert system ahieves goal and reaches conclusions.

Briefly...

Backward chaining - the aim is to achieve a particular goal (eg. determine what's wrong with a car). The inference engines asks questions to gather more and more detailed information relevant to achieving this goal. Answers to questions establish facts which can be used to fire rules until a rule achieves the goal. Also known as a goal driven strategy.

Forward chaining - start with a whole bunch of known facts (perhaps by asking a series of questions) and see what conclusions we can reach. Use the known facts to fire rules which establishes further facts and so on... It is possible for a number of conclusions to be reached. Also known as a data driven strategy.

HTH
Sam

Another question:
Consider your mobile phone as an information system. Describe the external entities and dataflows on a context diagram for this system.

Heiday · 29 Oct 2008, 9:53 AM

O = Proccess
[] = External Entity
-> = Data flow.
-------------------------------

[transmitter] -> O (mobile system) -> [receiver]

Transmitter, sends out electronic pulses to the closest station. Which is then proccessed and sent to the receiver.

Am i correct? lol

MrKim · 29 Oct 2008, 10:25 AM

I see no one's putting up a question? so i may as well put one up.

What is 'metadata'? and what does it do?

Takuto · 29 Oct 2008, 10:43 AM

thanks for your contribution ^^ feel free to add as many questions as you want, the more the merrier

and thanks for clarifying that Sam, lol. btw, i have found your textbooks very helpful and enjoyable this year, especially for SDD. your writing style is easy to follow and simple - highly recommended!!

peteryang · 29 Oct 2008, 10:47 AM

Quote:

Originally Posted by MrKim

What is 'metadata'? and what does it do?

metadata is "data about data", basically data that describes other data, for example HTML documents use metadata in the form of HTML tags to describe the contents and layout of a web page.

Makro · 29 Oct 2008, 11:03 AM

Really it's more "Information about data", eg descriptions of fields in a data dictionary.

Seeing as no one would answer this question in the other thread properly, I'll post one I don't know

What is a check digit? Provide an example of one and how its used.

This question refers to the Data validation rules (Type check, list check, range check, check digit).

gloworm14 · 29 Oct 2008, 11:06 AM

havent started looking at ipt yet until now.
cram time today.

Takuto · 29 Oct 2008, 11:10 AM

heyyy gloworm =]

how was ext. 1

28 Oct 2008, 4:00 PM	#31 (permalink)
Makro Porcupine HSC: 2009 Gender: Male Location: In between. Join Date: May 2006 Posts: 436 Last Activity: 15 Mar 2010, 2:06 PM	Re: IPT Study Thread You can hide this advertisement by registering. I've never heard of "chaining". __________________ B Science in Information Technology @ UTS Repetition is the mother of success

28 Oct 2008, 5:29 PM	#32 (permalink)
JosephW Member HSC: 2008 Gender: Male Join Date: Aug 2007 Posts: 139 Last Activity: 28 Jun 2009, 4:56 PM	Re: IPT Study Thread Same... What are the implications of home-based work? __________________ Bachelor of Engineering in ICT (Software), Dip Eng Prac 2009

28 Oct 2008, 5:33 PM	#33 (permalink)
mijoe Assistant Member HSC: 2010 Gender: Male Location: Behind you Join Date: May 2008 Posts: 72 Last Activity: 7 Mar 2010, 10:21 PM	Re: IPT Study Thread You guys should try to stick closer to the syllabus. __________________ - Joe Year 11 Subjects -3 Eng/Maths -Economics -Physics -Chemistry

28 Oct 2008, 9:06 PM	#35 (permalink)
Takuto Executive Member HSC: 2008 Gender: Male Location: abo town Join Date: May 2006 Posts: 454 Last Activity: 4 Mar 2010, 11:10 AM	Re: IPT Study Thread lol forward/backward chaining is part of the SDD course i think Q: Discuss the potential advantages of the use of a pilot conversion method over a phased conversion method. (2 marks) __________________

28 Oct 2008, 9:15 PM	#36 (permalink)
Makro Porcupine HSC: 2009 Gender: Male Location: In between. Join Date: May 2006 Posts: 436 Last Activity: 15 Mar 2010, 2:06 PM	Re: IPT Study Thread With, pilot all the bugs and shortcomings can be tested before it's fully implemented. There is also no confusion between systems as everyone in pilot uses 1 system, while those on phased have to use 2 systems. ^ the adv of pilot and dis. of phased. Enough? __________________ B Science in Information Technology @ UTS Repetition is the mother of success

29 Oct 2008, 8:41 AM	#37 (permalink)
mungi New Member HSC: 2008 Gender: Male Join Date: Jun 2007 Posts: 8 Last Activity: 21 Jan 2010, 10:32 AM	Re: IPT Study Thread what are some of the software needed to establish a communication link?

29 Oct 2008, 9:53 AM	#39 (permalink)
Heiday Assistant Member HSC: 2006 Gender: Female Join Date: Feb 2006 Posts: 57 Last Activity: 19 Oct 2009, 10:51 AM	Re: IPT Study Thread O = Proccess [] = External Entity -> = Data flow. ------------------------------- [transmitter] -> O (mobile system) -> [receiver] Transmitter, sends out electronic pulses to the closest station. Which is then proccessed and sent to the receiver. Am i correct? lol

29 Oct 2008, 10:25 AM	#40 (permalink)
MrKim Junior Member HSC: 2008 Gender: Male Join Date: May 2008 Posts: 32 Last Activity: 15 May 2009, 11:02 PM	Re: IPT Study Thread I see no one's putting up a question? so i may as well put one up. What is 'metadata'? and what does it do?

29 Oct 2008, 10:43 AM	#41 (permalink)
Takuto Executive Member HSC: 2008 Gender: Male Location: abo town Join Date: May 2006 Posts: 454 Last Activity: 4 Mar 2010, 11:10 AM	Re: IPT Study Thread thanks for your contribution ^^ feel free to add as many questions as you want, the more the merrier and thanks for clarifying that Sam, lol. btw, i have found your textbooks very helpful and enjoyable this year, especially for SDD. your writing style is easy to follow and simple - highly recommended!! __________________ Last edited by Takuto; 29 Oct 2008 at 10:46 AM.

29 Oct 2008, 11:03 AM	#43 (permalink)
Makro Porcupine HSC: 2009 Gender: Male Location: In between. Join Date: May 2006 Posts: 436 Last Activity: 15 Mar 2010, 2:06 PM	Re: IPT Study Thread Really it's more "Information about data", eg descriptions of fields in a data dictionary. Seeing as no one would answer this question in the other thread properly, I'll post one I don't know What is a check digit? Provide an example of one and how its used. This question refers to the Data validation rules (Type check, list check, range check, check digit). __________________ B Science in Information Technology @ UTS Repetition is the mother of success

29 Oct 2008, 11:06 AM	#44 (permalink)
gloworm14 Executive Member HSC: N/A Gender: Female Join Date: Jun 2007 Posts: 624 Last Activity: 13 Nov 2009, 9:49 PM Blog Entries: 1	Re: IPT Study Thread havent started looking at ipt yet until now. cram time today.

29 Oct 2008, 11:10 AM	#45 (permalink)
Takuto Executive Member HSC: 2008 Gender: Male Location: abo town Join Date: May 2006 Posts: 454 Last Activity: 4 Mar 2010, 11:10 AM	Re: IPT Study Thread heyyy gloworm =] how was ext. 1 __________________

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