Which of the following are characteristics of testable software ?

  1. Observability

  2. Simplicity

  3. Stability

  4. All of the above


Correct Option: D

AI Explanation

To answer this question, we need to understand the characteristics of testable software. Let's go through each option to understand why it is correct or incorrect:

Option A) Observability - This option is a characteristic of testable software. Observability refers to the ability to observe and monitor the behavior of the software during testing. It allows testers to gather information about the software's execution, outputs, and internal states.

Option B) Simplicity - This option is not a characteristic of testable software. While simplicity can make software easier to understand and maintain, it does not directly impact its testability.

Option C) Stability - This option is not a characteristic of testable software. Stability refers to the ability of software to remain in a consistent state without crashing or producing unexpected behavior. While stability is desirable in software, it does not directly impact its testability.

Option D) All of the above - This option is the correct answer. Testable software should exhibit all the characteristics mentioned in options A, B, and C. Observability, simplicity, and stability are all important factors that contribute to the testability of software.

Therefore, the correct answer is D) All of the above. This option is correct because all the characteristics mentioned (observability, simplicity, and stability) are important for testable software.

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