This tutorial describes Decision Table Testing Technique
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Video Transcript with Key Takeaways Highlighted:
Decision Table Testing is a good way to deal with combination of inputs, which produce different results
To understand this with an example lets consider the behavior of Flight Button for different combinations of Fly From & Fly To
When both Fly From & Fly To are not set the Flight Icon is disabled.In the decision table , we register values False for Fly From & Fly To and the outcome would be ,which is Flights Button will be disabled i.e. FALSE
Next , when Fly From is set but Fly to is not set , Flight button is disabled. Correspondingly you register True for Fly from in the decision table and rest of the entries are false
When , Fly from is not set but Fly to is set , Flight button is disabled And you make entries in the decision table
Lastly , only when Fly to and Fly from are set , Flights button is enabled And you make corresponding entry in the decision table
If you observe the outcomes for Rule 1 , 2 & 3 remain the same .So you can select any of the them and rule 4 for your testing
The significance of this technique becomes immediately clear as the number of inputs increases. .Number of possible Combinations is given by 2 ^ n , where n is number of Inputs.
For n = 10 , which is very common is web based testing , having big input forms , the number of combinations will be 1024. Obviously, you cannot test all but you will choose a rich sub-set of the possible combinations using decision based testing technique
