1. Optimal testing-resource allocation with genetic algorithm for modular software systems Reporter : Wang Jing-Yo Date : 2004/05/26

2. Nomenclature (1/2) C : the total cost C i (R i ) : cost function of modular i, when its reliability is R i m(t) : mean value function in non- homogeneous Poisson process R : system reliability

3. Nomenclature(2/2) R i (x|T i ) : reliability function of modular i, after the testing of a period T i T : total testing resource (or time ) T i : testing resource allocated on modular i : optimal allocated resource on modular I λ i (t) : failure intensity function for modular i

4. The structure of a parallel-series modular software system

5. Parallel-series modular software system (1/) n groups of parallel modules and m serial modules Reliability :

6. Parallel-series modular software system (2/) Cost : Subject to :