Difference between Equivalence Partioning and Boundary Value Analysis.

Equivalence Partioning:-
i) Equivalence Partition determines the number of test cases to be generated for a given scenario.
ii) It has to be supplemented by Boundary Value Analysis.
iii) Equivalence Partitioning is a black box testing technique with the following goal:
1.To reduces the number of test cases to a necessary minimum.
2. To select the right test cases to cover all possible scenarios.
iv) Equivalence Partition is nothing but to check the valid and invalid data of the field.

Boundary Value Analysis:-
i) Boundary value analysis will determine the effectiveness of those generated test cases.
ii) This has to be done by applying the equivalence partitioning technique.
iii) Boundary value analysis only check the boundary values and "+" or "-" of that values.
iv) Boundary value analysis is nothing but to check the max and min length of the field.