精选优质文档-倾情为你奉上习题参考答案Exercises(Homework): P251.3 What are the four important attributes that all professional software should have? Suggest four other attributes that may sometimes be significant.Answer:Four important attributes are maintainability, dependability, performance and usability. Other attributes that may be significant could be reusability (can it be reused in other applications), distributability (can it be distributed over a network of processors), portability (can it o
