【正文】 可以支持單板的獨(dú)立調(diào)試和測試，提高調(diào)試和測試效率NYN452在單板上提供均勻分布的地針或接地點(diǎn)方便信號測試NYN353提供上電對關(guān)鍵芯片的自檢測試，測試結(jié)果通過指示燈顯示并同時上報(bào)控制臺。(Y/N)最好滿足的需求就是可以進(jìn)行折中和排序取舍的可測性需求?；拘枨缶褪窃诋a(chǎn)品必須滿足的可測性需求，不能作取舍。Testability Requirement for Board and Parts Failure Diagnostic TestThe requirement of board and parts failure diagnostic test covers mainly troubleshooting which is located to chip level, independent operation requirement of board and parts as well as the layered loop back, board hardware initialization and self test, board auto loop and loop back. In addition, the patibility of test equipment and test tools should be taken into consideration.本部分其可測性需求主要來源于測試策略、經(jīng)驗(yàn)總結(jié)以及內(nèi)部訪談和調(diào)研分析。 Requirements here usually e from test strategy , experience, interview.、單板和部件故障診斷測試的可測性需求單板和部件的故障診斷測試關(guān)注點(diǎn)主要是如何提高故障定位的有效性、準(zhǔn)確性，方便性。 主要考慮以下幾個方面的內(nèi)容：（1）測試數(shù)據(jù)源設(shè)計(jì)（2）通道的分層逐段環(huán)回設(shè)計(jì)（3）單板硬件（芯片） 的在線測試設(shè)計(jì)（4）測試監(jiān)控及測試結(jié)果的記錄、分析和上報(bào)設(shè)計(jì)例如：提供例測命令，實(shí)現(xiàn)對設(shè)備的全面在線測試，包括例測啟動設(shè)置、例測模式范圍選擇、例測結(jié)果記錄上報(bào)、例測故障診斷定位等。 Requirements here usually e from test strategy , experience, interview.、在線例行測試的可測性需求在線例測用于實(shí)現(xiàn)定時對系統(tǒng)的功能和關(guān)鍵性能進(jìn)行檢測，確保系統(tǒng)和部件運(yùn)行的正確性。 主要考慮以下幾個方面的內(nèi)容： （1）測試數(shù)據(jù)源設(shè)計(jì)（2）業(yè)務(wù)通路用外部程序控制的設(shè)計(jì)（3）業(yè)務(wù)通路的環(huán)回及故障定位設(shè)計(jì)（4）各單板自檢測試設(shè)計(jì)（5）數(shù)據(jù)自動配置工具設(shè)計(jì)（6）運(yùn)行狀態(tài)監(jiān)控及測試結(jié)果的記錄、分析和上報(bào)設(shè)計(jì)例如：整機(jī)測試的自動化對生產(chǎn)效率提高非常重要，所以一般需要提供整機(jī)安裝后自測試功能，包括提供各單板的自檢測試，系統(tǒng)業(yè)務(wù)通路的遍歷自測試設(shè)計(jì)支持等等，自測試的問題定位應(yīng)該盡量定位到板級，而且測試用的數(shù)據(jù)源應(yīng)該盡量采用內(nèi)置設(shè)計(jì)，避免試用昂貴的外部儀器。Testability Requirements for SVT System verification test is used for verifying whether the different standard performance can meet design requirements and what is the standard limit tolerance level in different environment. The system verification test generally include specification and interface test, function and performance test, subsystem and module test, application test and consumer test. The focus here is whether the different system verification test items can be achieved, as well as the convenience for achieving, and whether problems can be diagnosed. The following contents should be taken into consideration:(1)The reliability and convenience of system function test.(2)The reliability and convenience of specification test, system performance test and bottleneck positioning.(3)The reliability and convenience of system alarm function verification test.(4)The reliability and convenience of system tolerance test, error tolerance and limit performance test.(5)The reliability and convenience of protocol tracking and verification test.本部分需求主要來源于測試策略、經(jīng)驗(yàn)總結(jié)以及內(nèi)部訪談和可測性調(diào)研分析。對于異常容錯測試往往需要考慮相應(yīng)的硬件接口或函數(shù)接口支持。 主要考慮以下幾個方面的內(nèi)容：（1）系統(tǒng)業(yè)務(wù)功能測試的可實(shí)現(xiàn)性和方便性（2）性能指標(biāo)測試與瓶頸定位的可實(shí)現(xiàn)性和方便性（3）系統(tǒng)告警功能驗(yàn)證測試的可實(shí)現(xiàn)性和方便性（4）系統(tǒng)容限/容錯/極限性能測試的可實(shí)現(xiàn)性和方便性（5）協(xié)議跟蹤與驗(yàn)證測試的可實(shí)現(xiàn)性和方便性。Testability requirements of joint system debuggingThe focus here is to provide some means, which can help us to learn about and find out the problems, find the reason of the problem, as well as solving methods and effectiveness of the problems. The following contents should be taken into consideration:(1)The design of testing data source .(2)The design for inspection and modification of system business flow and control data flow.(3)Segment loop and diagnose design for subsystems and modules.(4)The selftest design for subsystems and modules. (5)The design of interface or patibility design necessary for testing equipment and tools.(6)The recording, analyzing and reporting of testing result.本部分需求主要來源于聯(lián)調(diào)經(jīng)驗(yàn)、聯(lián)調(diào)測試策略以及內(nèi)部訪談和調(diào)研分析。D test dept., you can get detailed supporting process and technical guide for software testability requirements. 、系統(tǒng)聯(lián)調(diào)中的可測性需求需求的關(guān)注點(diǎn)主要是能夠提供一些手段，這些手段是可以暴露問題、發(fā)現(xiàn)問題、定位問題產(chǎn)生原因，解決問題、以及驗(yàn)證解決效果的測試手段，主要考慮以下幾個方面的內(nèi)容：（1）測試數(shù)據(jù)源設(shè)計(jì)（2）業(yè)務(wù)和控制數(shù)據(jù)流的監(jiān)控和變更設(shè)計(jì)（3）子系統(tǒng)和模塊的故障分段環(huán)回及定位設(shè)計(jì)（4）子系統(tǒng)和模塊的自測試設(shè)計(jì)（5）測試儀器和工具的測試接口或兼容性設(shè)計(jì)（6）測試結(jié)果的記錄、分析和結(jié)果上報(bào)設(shè)計(jì)例如：系統(tǒng)聯(lián)調(diào)中如何區(qū)分不同單板、不同模塊之間的故障，出了故障后問題是出在這個單板/模塊還是出在與之接口的那個單板/模塊，是我們經(jīng)常遇到的一個問題。 軟件可測試性需求的分析詳細(xì)過程與方法，參見測試部相關(guān)支撐流程。 test