You are defining the test approach for an Agile project that is developing a system that will control traffic lights at busy road junctions based on input from sensors that measure traffic density and flow rates on the roads leading to the junctions. It i s a safety-critical application but. because of the skill and experience of the project team, a risk assessment has determined that its risk level is low.
which option in the table below represents the BEST test approach for this release?
Key to symbols
+ (highl y recommended)
+ (recommended)
o (neutial / optional)
- (not recommended) - (not to be used)
Option Number Test Automation Exploratory Testing (manual) Black-box testing
1 + + ++
2 -
+
3 4- 4- +
4 0 ++ +
SELECT ONE OPTION
Which of the following is a primary goal for refactoring test cases?