Which one of the following is an example of a good requirement characteristic?

A good requirement characteristic is that it is verifiable. This means that the requirement can be tested or measured in some way to confirm that it has been fulfilled. Verifiable requirements allow stakeholders to ascertain whether the final product meets the specified criteria, ensuring that systems engineering practices effectively address the needs and expectations of users.

Verifiability is crucial in systems engineering because, without it, there is a risk of ambiguity, misinterpretation, or acceptance of a design that does not truly satisfy user requirements. It provides clarity in both the implementation and verification phases of a project, allowing teams to establish clear acceptance criteria and to ensure that each of those criteria can be objectively evaluated.

In contrast, characteristics such as being unbounded, subject to interpretation, and not necessary lead to vague or irrelevant requirements, which can create confusion and ultimately lead to project failures. Having clear, unambiguous, and meaningful requirements is foundational for successful systems engineering practices, making verifiability a hallmark of good requirements.