Can we determine the number of test cases to write, using a decision table, Plz illustrate with an example.

Hi Rose,

Decision table is a suitable method to test indefinite test cases.They could give the relevant probability and matches of test cases without missing any of them.

I have found very good article describing about thisconcept.Please find them useful.

Happy Learning,
Sridevichitthu

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Decision table testing.pdf (131.0 KB, 10 views)

Hi Sredevi,
I hav read that document before. But it doesnt help me with findin how many test cases i can write, given a decision table.
My requirement is this: i have a decision table with me, with all conditions, actions and rules written. I need to know how many test cases i can write using this decision table. Can u help me on this issue..?

Thanks,
Rose.

Hi Rose,

A Tester can use Decision table to consider combinations of inputs to generate the actual tests.

I hope you are aware of Internet subscription form , some website create encrypted code to authenticate the user at the end of filled in subscription form.

Lets take this as an example, after filling in all fields user will be asked to type letters shown at the bottom which has strikes or tilted or wavy letters for Encryption purpose. Iam going to generate these letters from the name of the user.(User will be asked in to enter First, Middle and Surname in the subscription form)

Conditions:

Consider the word W1 as First Name
W2 as Middle name
W3 as Surname

Let W1be Martin
W2 be Jones
W3 be James

Let T1,T2,T3 ..... Tn be the Test cases

Rule :

The decision rule is to find out the series of letter as NRM

Actions :

The Series of combination is action that is named as Test cases

Test Scenario :

T1 --> Find the letter N in W1
Find the letter N in W2
Find the letter N in W3

T2 -- > Find the letter N in W3
Find the letter N in W2
Find the letter N in W1

T3 --> Find the letter N in W2
Find the letter N in W1
Find the letter N in W3

T4 --> Find the letter R in W1
Find the letter R in W2
Find the letter R in W3

T5 --> Find the letter R in W3
Find the letter R in W2
Find the letter R in W1

T6 --> Find the letter R in W2
Find the letter R in W1
Find the letter R in W3

T7 --> Find the letter M in W1
Find the letter M in W2
Find the letter M in W3

T8 --> Find the letter M in W3
Find the letter M in W2
Find the letter M in W1

T9 --> Find the letter M in W2
Find the letter M in W1
Find the letter M in W3

From these scenario Test result can be obtained from the series W2 , W1 and W3.We have them on Test case T3,T6 and T9.

As for my knowledge,i could get these details from my mind

Hope this will help you,

Thanks,
Sridevichitthu