4.2.2 Boundary Value Analysis

Question 1

Boundary Value Analysis (BVA) is a test technique based on exercising the “ “ of …

BVA can only be used for …

Answer 1

boundaries
equivalence partitions.

ordered partitions.

Question 2

The minimum and maximum values of a partition are it’s …

In the case of BVA, if two elements belong to the same partition, all “ “ between them must also belong to that “ “.

Answer 2

boundary values.

elements
partition

Question 3

BVA focuses on the boundary values of the partitions because developers are more likely to make “ “ with these …

Answer 3

errors
boundary values.

Question 4

Typical defects found by BVA are located where implemented boundaries are “ “ to positions … their intended “ “ or are …

Answer 4

misplaced
above or below
positions
omitted altogether.

Question 5

In 2-value BVA, for each boundary value there are two coverage items:
- this b…
- it’s … belonging to the …

Answer 5

• boundary value
• closest neighbor
  adjacent partition

Question 6

To achieve 100% coverage with 2-value BVA, test cases must exercise … (all identified …

Coverage is the … total number of … and expressed as a “ “.

Answer 6

all coverage items
boundary values).

number of boundary values exercised / identified boundary values
percentage.

Question 7

In 3-value BVA, for each boundary value there are three coverage items:
- this b…
- both it’s…

So, some coverage items may not be …

Answer 7

• boundary value
• neighbors

Boundary values.

Question 8

To achieve 100% coverage with 3-value BVA, test cases must exercise … (identified boundary …

Coverage is number of … and … / total number of … and expressed as …

Answer 8

all coverage items
values and their neighbors).

boundary values
their neighbors exercised
of identified boundary values
and their neighbors
a percentage.

Question 9

3-value BVA is more rigorous than 2-value BVA as it may detect defects …

Answer 9

overlooked by 2-value BVA.