ah...desk checking anyone....??? (1 Viewer)

[sparkl3z]

ai pplz, can somebody please explain to me the concept of desk-checking? i really really realllllly dont understand that crap coz my book dosent explain it properly.. and also can somebody define 'test data' please.....any help would be appreciated!!!

 

[smallcattle]

Deskchecking is like inputting different test data to see what each outcome will be

eg

BEGIN MainProgram

READ num

num = num + 1

Display num

END MainProgram

test data would be like 2, 4, test, and stuff like that

input of num =2 would get you a result of 3, input of 3 would get you a result of 4, and a input of test would get you runtime error

 

[Doogsy]

u dont even know what test data is. its just any data you use to test an algorithm or source code. You should pick test data that tests outside the boundaries, close to the boundaries, on the boundaires and well within the boundaries of the algorithm
eg
IF count > 10 THEN
.....
here some suitable test data would be: 50, 11, 10, 9, 5 (in the respective order above)

 

[Purp|e]

basically our teacher sed doing a structured walkthrough is just as good as a 'desk check' i dont really know why they are 2 diff things :S

but yeah make sure u test:
- legal + expected
- illegal + expected
- legal + unexpected

 

[sparkl3z]

lol ok ok i get it now hehe thanx u guys, gud luck 2moro!

 

[xeriphic]

desk checking is manual testing of the algorithm using test data and comparing the expected output with the actual output as an attempt to locate errors, this is ofen carried out in the planning and designing stage as elimiting error early can reduce costly and time consuming errors later on, when desk checking, you need to check all paths of execution, above and below boundary conditions and unexpected inputs

 

[Seraph]

yea but in reality everyone uses desk checking by puttign the names of variables in a table and usign the necessary test data to update the value of variables..

 

[einsteinthe2nd]

In reality we don't desk check.

Thats what CASE tools are for...

 

[Purp|e]

In reality we don't desk check.

Thats what CASE tools are for...

hehe, write that in the exam if they ask u to desk check. u'd only be proving the sylabus right.

 

[Bunny04]

eeekkk/ Still cant understand the Whole of the SDD course..