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what is difference between Extend and Include with example?
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Answer Posted / vivek kumar
Extending use case typically defines optional behaviour. It
is independent of the extending use case.
Include used to extract common parts of the behaviours of
two or more use cases
eg:-
Use case I am going to city.
Includes -> drive the car
Extends -> fill the petrol
Fill the petrol may not be required at all times but may
optionally be required based on the amount of petrol left
in the car.
Drive is a prerequisite hence I am including.
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