利用不同基準測試程序?qū)τ嬎銠C系統(tǒng)進行測試，可能會得到不同的性能評價結(jié)果，對這些結(jié)果進行統(tǒng)計和比較分析，可以得到較為準確的接近實際的結(jié)果。其中，持續(xù)性能用三種平均值來表示，但不包括（）。

A、算術(shù)性能平均值A(chǔ)_m

B、幾何性能平均值G_m

C、調(diào)和性能平均值H_m

D、奇偶性能平均值O_m
信管網(wǎng)參考答案：D
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67、在系統(tǒng)能力管理中，能力數(shù)據(jù)庫的數(shù)據(jù)構(gòu)成了性能評價和能力管理報告的基礎(chǔ)，這些報告將會提交給技術(shù)和管理部門。能力數(shù)據(jù)庫中輸入的數(shù)據(jù)有多種數(shù)據(jù)類型，下面所列①~⑥中，（）包含了能力數(shù)據(jù)庫中輸入的數(shù)據(jù)。
①業(yè)務(wù)數(shù)據(jù) ②服務(wù)數(shù)據(jù) ③技術(shù)數(shù)據(jù)
④服務(wù)和組件報告 ⑤財務(wù)數(shù)據(jù) ⑥資源應(yīng)用數(shù)據(jù)
A．①②③⑥
B．②④⑤⑥
C．①②③⑤⑥
D．①②③④⑤⑥
信管網(wǎng)參考答案：C
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68、信息系統(tǒng)評價中，關(guān)于評價與系統(tǒng)決策的關(guān)系有三種類型。下列選項中，（）不屬于這三種類型。
A．決策者評價
B．決策前評價
C．決策中評價
D．決策后評價
信管網(wǎng)參考答案：A
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69、所謂的信息系統(tǒng)多指標(biāo)綜合評價是指對信息系統(tǒng)所進行的一種全方位的考核或判斷。一般來說，信息系統(tǒng)多指標(biāo)綜合評價工作主要包括三方面內(nèi)容。下列選項（）不屬于這三方面內(nèi)容。
A．綜合評價指標(biāo)體系及其評價標(biāo)準的建立
B．確定由哪一方撰寫綜合評價報告
C．用定性或定量的方法（包括審計的方法）確定各指標(biāo)的具體數(shù)值
D．各評價值的綜合，包括綜合算法和權(quán)重的確定、總評價值的計算等
信管網(wǎng)參考答案：B
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70、系統(tǒng)運行質(zhì)量評價是指從系統(tǒng)實際運行的角度對系統(tǒng)性能和建設(shè)質(zhì)量等進行的分析、評估和審計。評價的工作內(nèi)容包括這樣一些活動：
①給出評價結(jié)論；
②根據(jù)評價的目標(biāo)和目的設(shè)置評價指標(biāo)體系；
③根據(jù)評價指標(biāo)體系確定采用的評價方法；
④圍繞確定的評價指標(biāo)對系統(tǒng)進行評價。
正確的工作步驟是（）。
A．①②③④
B．④①②③
C．②③④①
D．②①③④
信管網(wǎng)參考答案：C
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71、72、73、74、75、As information systems are complex and multifaceted,failure (and success)can be manifested (表現(xiàn)，體現(xiàn)) in many ways.There are two important ways of looking at information systems that lead to different (71) of considering their success or failure.
In the straightforward case,an information system can be considered as a project that is instigated,specified,designed and eventually implemented and maintained.It goes through a life cycle like the one described above.When big,high profile information system (72) fail,they attract significant amounts of publicity,especially if they are in the public sector,and their consequences are often dramatic and far-reaching.
At another extreme,there are information systems that form sets of subsystems that work together to deliver an overall information system.The subsystems may be modified and updated,new items may be introduced and redundant ones removed.People may talk about this being a (73) information system,and it may be criticized or deemed to be a (74), but neither it nor its predecessors need ever have been designed as a complete whole.Evolved information systems may develop slowly over a long period of time,sometimes changing imperceptibly (極微小地) and sometimes being the subject of fairly major modifications.Such systems can fail catastrophically (災(zāi)難性地),but it is often the case that they (75) becom
unable to cope with the demands placed upon them until,if not modified,they reach a point where they start to cause serious harm to the activities they were designed to support.
A．complexities
B．ways
C．onsiderations
D．tools
A．projects
B．specifications
C．implementations
D．maintenances
A．good
B．single
C．success
D．failure
A．success
B．criticism
C．a(chǎn)ccomplishment
D．failure
A．normally
B．generally
C．gradually
D．mostly
信管網(wǎng)參考答案：B、A、B、D、C
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