This tutorial describes the State Transition Testing Technique
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Video Transcript with Key Takeaways Highlighted:
You can use State Table to determine invalid system transitions
In a state Table all the valid states are listed on the left side of the table , and the events that cause them on the top.
Each cell represents the state system will move to when the corresponding event occurs
For example while in S1 state you enter correct password you are taken to state S6
Or in case you enter incorrect password you are taken to state S3
Like wise you can determine all other states
Two invalid states are highlighted using this method which basically means , what happens when you are already logged into the application and you open another instance of flight reservation and enter valid or invalid passwords for the same agent
System response for such a scenario can need to be tested.