Use Scenario 1 "Happy Tomatoes" (from the previous question).
Using the Boundary Value Analysis (BVA) technique (in its two-point variant), identify the set of input values that provides the HIGHEST coverage.
Correct Answer: A
Comprehensive and Detailed In-Depth Explanation:
Boundary Value Analysis (BVA) focuses on test cases at the edges of partitions because defects often occur at boundaries. The temperature ranges are:
* #7 (Too cold # W)
* [8-21] (Standstill # X)
* [22-29] (Ideal # Y)
* #30 (Too hot # Z)
A two-point BVA means testing both the lower and upper boundary values of each partition.
The correct selection {7,8,21,22,29,30} includes:
* 7 # Boundary of Too Cold (W)
* 8 # Lower boundary of Standstill (X)
* 21 # Upper boundary of Standstill (X)
* 22 # Lower boundary of Ideal (Y)
* 29 # Upper boundary of Ideal (Y)
* 30 # Lower boundary of Too Hot (Z)
This ensures maximum boundary coverage.
Reference: ISTQB CTFL v4.0 Syllabus, Section 4.2.2 - Boundary Value Analysis