§4.质量保证( Quality Assurance 1、软件质量的定义: Mccall' s quality model(10977 Understandability Portability Maintainability Reusability Flexibility Interoperability Testability Product Transition Product Operation Correctness Integrity Robustness Usability Efficiency Risk11 Product Operation Product Revision Product Transition Understandability Maintainability Flexibility Testability Portability Reusability Interoperability Correctness Robustness Efficiency Integrity Usability Risk §4. 质量保证 (Quality Assurance) 1、软件质量的定义：McCall’s quality model (1977)