Decision Table Testing Techinque with example

How to perform Decision Table Testing Technique with example

Conditions	Stub	Entry (rules)
	C1	True			False
	C2	True		False	True		False
	C3	True	False	-	True	False	-
Actions	A1	x	x		x
	A2	x				x
	A3		x		x	x
	A4			x

Test Case Generation

· Conditions : Inputs

· Actions: Outputs

· Rules: test cases

Example:

	Stub	Rule1	Rule2	Rule3	Rule4
Conditions	Flyer member	Yes	Yes	No	No
	Class	Business	Economic	Business	Economic
Actions	Upgrade to first	Yes	No	No	No
	Upgrade to business	-	Yes	-	No

Testcase1: Frequent flyer member, travelling in Business class

Testcase2: Non-member, travelling in Economy class

Possible Answers:

1. Testcase1 – Don’t offer any upgrade, Testcase2 – Don’t offer any upgrade.

2. Testcase1 – Don’t offer any upgrade, Testcase2 – Offer upgrade to Business class.

3. Testcase1 – Offer upgrade to First, Testcase2 – Don’t offer any upgrade.

4. Testcase1 – Offer upgrade to First, Testcase2 – Offer upgrade to Business class.

Follow below steps to answer:

1. Match with conditions in with available rules as input

2. When all the conditions match at that time, verify respective rule section for the answer.

For example in testcase1, frequent flyer member is available with rule1 and rule2. Now check for the travelling business class, here rule 1 only match with the condition. So Rule1 satisfy both the condition 1 and condition2. So according to rule1 testcase 1 allows offer upgrade to First

In testcase 2, non member is available with rule3 and rule4. Now check for the travelling economy class, here rule 4 only match with the condition. So Rule4 satisfy both the condition 1 and condition2. So according to rule4 testcase 2 allows Don’t offer any upgrade.

So answer is ‘Testcase1 – Offer upgrade to First, Testcase2 – Don’t offer any upgrade.’