第二講軟件質(zhì)量管理(編輯修改稿)
2025-02-04 07:42 本頁面
【文章內(nèi)容簡介】 兼容性商業(yè)規(guī)則 ?弱者設(shè)法與強(qiáng)者兼容，否則無容身之地 ?強(qiáng)者應(yīng)當(dāng)避免被兼容，否則市場將被瓜分 Word VS WPS 2023年 2月 5日 信息科學(xué)與技術(shù)學(xué)院 36 Subcharacteristics of Reliability ?Maturity(成熟度 ) ?frequency of failure due to faults the more the software has been used, the more faults will have been removed ?Faulttolerance (容錯性 ) ?Recoverability (可恢復(fù)性 ) ?Reliability pliance (可靠性符合性 ) ?plies with standards relating to reliability 2023年 2月 5日 信息科學(xué)與技術(shù)學(xué)院 37 Subcharacteristics of Usability ?Understandability (可理解性 ) ?easy to understand? ?Learnability (可學(xué)習(xí)性 ) ?easy to learn? ?Operability (可操作性 ) ?easy to use? ?Attractiveness (吸引性 ) ? this is a recent addition ?Usability pliance (可用性符合性 ) ?pliance with relevant standards 2023年 2月 5日 信息科學(xué)與技術(shù)學(xué)院 吸引性 ~~“ 一見鐘情 ” 2023年 2月 5日 信息科學(xué)與技術(shù)學(xué)院 39 Subcharacteristics of Efficiency ?Time behaviour (時間特性 ) ?. response time ?Resource utilization (資源利用 ) ?. memory usage ?Efficiency pliance (有效性符合性 ) ?pliance with relevant standards 2023年 2月 5日 信息科學(xué)與技術(shù)學(xué)院 40 Subcharacteristics of Maintainability ?Analysability(可分析性 ) ?ease with which the cause of a failure can be found ?Changeability (可變性 ) ?how easy is software to change? ?Stability (穩(wěn)定性 ) ?low risk of modification having unexpected effects ?Testability (可測試性 ) ?Maintainability conformance (符合性 ) 2023年 2月 5日 信息科學(xué)與技術(shù)學(xué)院 41 Subcharacteristics of portability ?Adaptability (適應(yīng)性 ) ?Installability (可安裝性 ) ?Coexistence (共存性 ) ?Capability of coexisting with other independent software products ?Replaceability (可替代性 ) ?factors giving ‘upwards’ patibility ‘downwards’ patibility is excluded ?Portability conformance (符合性 ) ?Adherence to standards that support portability 2023年 2月 5日 信息科學(xué)與技術(shù)學(xué)院 42 Using ISO 9126 quality standards ?Judge the importance of each quality for the application ? for example, safety critical systems reliability very important ? realtime systems efficiency important ?Select relevant external measurements within ISO 9126 framework for these qualities, for example ? meantime between failures for reliability ? responsetime for efficiency 43 Using ISO 9126 quality standards(Cont.) ?Rather than map engineering measurement to qualitative rating, map it to a score ? Rate the
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