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Testing Techniques
Boundary Value Analysis
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Learning Outcome(Slide2)
3
Design test cases using BVA
2
Identify boundary values
1
Understand Boundary Value Analysis
Topic Name-Recall(Slide3)
Hook/Story/Analogy(Slide 4)
Transition from Analogy to Technical Concept(Slide 5)
Valid and Invalid Equivalence Classes
Valid and Invalid Equivalence Classes
Produces expected output
System should accept these values
Contains correct and acceptable input values
System should reject these values
Error message should be displayed
Contains incorrect or unacceptable input values
Invalid Equivalence Class
Valid Equivalence Class
Steps to Apply BVA
Identify boundary values
Create test cases using boundary values
Identify input range
Advantages and Limitations of BVA
Advantages
- Simple and effective
- Finds boundary-related defects
- High defect detection rate
Limitations
- Usually combined with ECP
- Not suitable for complex logic
- Only focuses on boundaries
Difference Between ECP and BVA
ECP tests groups of data
Both are black box techniques
BVA tests edges of data
Summary
3
Best used with ECP for effective testing
2
Focuses on boundary values
1
BVA is an important black box testing technique
Quiz
Which of the following is a boundary value for the range 10–50?
A. 25
B. 10
C. 30
D. 40
Quiz-Answer
Which of the following is a boundary value for the range 10–50?
A. 25
B. 10
C. 30
D. 40
Boundary Value Analysis
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