Analytic effectiveness evaluation of techniques for natural language sotware requirements testability

Testability is a quality characteristic that addresses the efficacy and effectiveness of software testing. In the literature testability has been principally considered from the point of view of design methodologies and coding techniques. Although these two aspects are very important for software testability, they are not the only ones that influence it. Requirements are another factor that can heavily affect software testability. In this paper, natural language requirements are considered and their impact on software testability is discussed. The causes of poor testability originating from natural language requirements are identified and state-of-the-art techniques to improve requirements testability are classified, discussed and their effectiveness evaluated.