[Year 12 IT Apps] ITA Section A, Q9 - dear o dear.

[Maggie Iaquinto]

Potts is wrong in this case.

 

________________________________

From: itapps-bounces at edulists.com.au
[mailto:itapps-bounces at edulists.com.au] On Behalf Of Roy Smalley
Sent: Wednesday, 14 November 2007 12:25 PM
To: Year 12 IT Applications Teachers' Mailing List
Subject: Re: [Year 12 IT Apps] ITA Section A, Q9 - dear o dear.

 

Mark,

I disagree.

 

I think the most likely answer is D

 

A, B & C are all testing

 

Validation occurs at the Input (Data entry) stage to limit the entry of
inaccurate data eg using Data Validation feature of Excel or using field
formatting in a database. So based on our students experience of doing
the Spreadsheet and Database outcomes I think most would choose D.

 

From the Potts textbook 

"Validation is the process by which data that has been input to a
computer is assessed to ensure that it is correct and complete. 

...

Electronic validation relies on software functions to perform checks on
accuracy, completeness and reasonableness." (p.12, highlighting added)

 

 

Roy Smalley
Access Department
Chisholm Institute of TAFE
PO Box 684
Dandenong  VIC  3175

Work:  9238 8496
      

>>> Mark Kelly <kel at mckinnonsc.vic.edu.au> Wednesday, 14 November 2007
11:27 >>>
Validation is used to
A. check the accuracy of calculations.
B. detect software errors and alert the manager.
C. test functions and alert programmers to errors.
D. prevent inaccurate data from entering the system.

This is a worry.  It cannot be D because validation does NOT check the 
ACCURACY of data, only its reasonableness. Even the sacred IT glossary 
says validation checks data input to a system is of an "appropriate type

for processing, and within acceptable boundaries")

B and C are silly.

So are we to accept that validation is used to check the accuracy of 
calculations?  Not really - that's called testing.

I think t! he question is just plain wrong, and I'm tempted to appeal 
against it on the grounds of factual inaccuracy.

Any other opinions?



-- 
Mark Kelly
Manager - Information Systems
McKinnon Secondary College
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