Difference between Equalance class partion and boundary
value analysis?

Answer Posted / @mit

Both Equivalence Class Partion and Boundry Value Analysis
are the Test cases design technique under Black box Testing.

In Equivalence partion,break the data or value into equal
partion.

For Ex. suppose a field have a validation to accept the 1-
100 characters.
Then according to Equivalence partion,break the value
into equal classes such as :-
1-20
21-40
41-60
61-80
81-100

Preapre the Test cases by covering above stated classes.

In Boundary Value analysis,cover all boundry values (both
vslid & Invalid) in test case.
Like Max+1,Max-1,Min+1,Min-1

Then preapare the Test cases by covering all above stated
condition.

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