Assume that a reliability model is to be fitted to. The number of errors remaining in the program at the beginning of integration testing is estimated to be 120. From experience with similar programs,...

Assume that a reliability model is to be fitted to. The number of errors remaining in the program at the beginning of integration testing is estimated to be 120. From experience with similar programs, analysts believe that the program will start integration testing with an MTTF of 150 hours.

 (a) Assuming a constant error-removal rate during integration, formulate a software reliability model.

 (b) Plot the reliability function versus time at the beginning of integration testing—after 4, 8, and 12 months of debugging.

(c) Plot the MTTF as a function of the integration test time, Ƭ.

problem 5.11