1. Introduction
A core ISTQB principle states that every development activity should have a corresponding test activity. This applies regardless of the SDLC model in use. This question examines which SDLC models follow this rule.
[한국어 요약]
ISTQB에서는 “각 개발 활동에는 대응되는 테스트 활동이 있다”고 설명합니다.
이 규칙이 어떤 SDLC 모델에서 적용되는지를 묻는 문제입니다.
2. Sample Question
Consider the following rule: “for every SDLC activity there is a corresponding test activity”. In which SDLC models does this rule hold?
- a) Only in sequential development models
- b) Only in iterative development models
- c) Only in iterative and incremental development models
- d) In sequential, incremental, and iterative development models
3. Correct Answer
✔ Correct Answer: d)
This rule holds for all SDLC models — sequential, incremental, and iterative. Testing must be aligned with development activities regardless of the chosen lifecycle.
[한국어 요약]
정답은 d)입니다.
이 규칙은 모든 SDLC 모델(순차적, 점증적, 반복적)에 적용됩니다.
4. Why the Other Options Are Not Correct
a) Only in sequential development models — ✖ Not correct
Even in non-sequential models like Agile, testing activities correspond to development activities. Therefore, this option is too limited.
[한국어 요약]
순차적 모델뿐 아니라 다른 SDLC에서도 동일 규칙이 적용되므로 틀렸습니다.
b) Only in iterative development models — ✖ Not correct
Iterative models do follow the rule, but they are not the only ones. Sequential and incremental models also apply it.
[한국어 요약]
반복 모델에서도 적용되지만, 반복 모델만 적용되는 것은 아니므로 틀렸습니다.
c) Only in iterative and incremental models — ✖ Not correct
This excludes sequential models, which also follow the rule. Thus, the option is incomplete.
[한국어 요약]
순차 모델에도 적용되므로 “반복 + 점증 모델만”이라는 표현은 틀렸습니다.
d) In sequential, incremental, and iterative development models — ✔ Correct
This option includes all major SDLC models. Testing activities always correspond to development activities independent of lifecycle structure.
[한국어 요약]
모든 SDLC 모델에 적용되므로 정답입니다.
5. Summary
The principle that every development activity has a corresponding test activity is universal. It applies to sequential, incremental, and iterative models alike, ensuring testing remains aligned with development throughout the lifecycle.
[한국어 요약]
이 규칙은 모든 SDLC에 공통적으로 적용되며, 개발과 테스트는 항상 대응 관계를 유지해야 합니다.
Related: More ISTQB posts