上海文通大学 SHANGHAI JIAO TONG UNIVERSITY O← Check Use Cases Restructuring Optimization Revisiting Optimizing access inheritance paths Collapsing classes Caching complex computations Realizing associations Delaying complex computations Software EngineeringSoftware Engineering Collapsing classes Restructuring Optimization Revisiting inheritance Optimizing access paths Caching complex computations Delaying complex computations Check Use Cases Realizing associations