What is Boundary Value Analysis(BVA) and Equivalence Class
Partition(ECP)?

Answer Posted / prashanth chenna

Equivalence Class Partition (ECP): Means dividing the input
Domain into groups and name these groups as Valid and
Invalid. By Using these groups we can derive the Test Cases.

Boundary Value Analysis (BVA): Means finding the boudaries
for given particular value. By Using these boundaries there
is maximum possibilities of finding Bugs/Defects in an
Application.

Example: In an Application User ID takes 5 to 10 Alphabets.
It is the Customer required.

Solution:
User ID: 5-10 Alphabets

ECP:
Valid Invalid
A-Z 0-9
a-z Special Charecters
Blank Field

BVA:
Min = 5 Pass
Min-1 = 3 Fail
Min+1 = 6 Pass
Max = 10 Pass
Max-1 = 9 Pass
Max+1 = 11 Fail

Is This Answer Correct ?    74 Yes 10 No



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