Requirement gaps can often be non-functional requirements such as testability, scalability, maintainability, performance, and security. RAMT stands for reliability, availability, maintainability/maintenance, and testability in the context of the customer's needs. "Skeptical Inquirer" magazine criticized the lack of falsifiability and testability of these claims. It is thus intimately related to the aim of testability and reproducibility. His Stanford research focuses on logic testing, synthesis, design for testability, and fault-tolerant computing. These proven practices yield increased testability and facilitate the application of build and test automation. Testability, a property applying to empirical hypothesis, involves two components. By the notion, formula 15 is the testability function for the specification formula 7. Repair-ability is always limited due to testability, manpower and logistic considerations. Based on this measure, a testability hierarchy has been proposed. A lower degree of testability results in increased test effort. However, it has been criticized for example as being subjective, being informal, and lacking testability. What can be tested depends on the software testability. Testability refers chiefly to the indicators&colon; Are they solid and measurable? Criticism has also pointed to the lack of testability of the general theory.