desk check (1 Viewer)

[mahoy]

if possible could someone plz explain to me how to do a desk check with test data and stuff. thanks

 

[sunny]

The most common way to do a desk check is to use an IPO chart to show that you've done what Bon has said, subbing in test data into the algorithm.

 

[Morgues]

but how do we present it?
None of the text books seem to go into this....

 

[sunny]

Sorry should've been more specific there...

Not really an IPO chart with I P and O, but in the first column you would have your test data, and in the following columns you would have the other variables.

The first row would be your first piece of test data, as you follow through the algorithm with the test data and as you encounter changes to the other variables you would write down the value for that variable in the right row/column.

 

[iptteacherssuck]

hehe

the guys who wrote ipt syllibus and who is senior marker for sdd couldn't do desk check at hsc enrichment day

hahaha

 

[mahoy]

like this???

 

[sunny]

Yep just like that

 

[do0d]

but wahts test data?
generally for every single variable that you have in there you should put a new column
that includes any paramaters that are passed in
this may seem tedoius but can be quite helpful

 

[saladsurgery]

Originally posted by mahoy
like this???

confused...
values for the variables in the program/passed to the function go in columns "var1", 2, 3 (i.e not user input variables, but variables as set by the program???)

expected and actual output columns speak for themselves

but...
what goes in the "test data" column? i'm currently guessing user input variables (i.e. the values the question gives you to use as user input test data)

 

[sunny]

I've written a small example...

http://members.optusnet.com.au/sunny_l/sdd/drink_algo.jpg
http://members.optusnet.com.au/sunny_l/sdd/desk_check.jpg

Obviously theres a mistake in the algorithm, and the if statment should be changed to => 18.