Component-based software reliability analysis incorporating imperfect debugging and change-point

Against the deficiencies of component-based software (CBS) reliability modeling and analysis, for instance, importing too many assumptions, paying less attention to debugging process without considering imperfect debugging and change-point (CP) problems adequately, an approach of CBS reliability process analysis is proposed which incorporates the imperfect debugging and CP. First, perfect/imperfect debugging and CP are reviewed. Based on the queuing theory, a multi-queue multichannel and infinite server queuing model (MMISQM) is presented to sketch the integration test process of CBS. Meanwhile, considering the effects of imperfect debugging and CP, expressions for fault detection and correction are derived based on MMISQM. Numerical results demonstrate that the proposed model can sketch the integration test process of CBS with preferable performance which outperforms other models.