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1DABCD2AABCD3CABCD4BABCD5CABCD6CABCD7(B)ABCD8AABCD9CABCD10DABCD11CABCD12BABCD13AABCD14BABCD15C.ABCD16DABCD17AABCD18BABCD19CABCD20DABCD21AABCD22BABCD23CABCD24DABCD25AABCD26BABCD27CABCD28DABCD123456789510111234567CASE12123456731234564712345675712345676392527?891231012311124131234141AABCD2BABCD3CABCD4DABCD5AABCD6BABCD7CABCD8DABCD9AABCD10BABCD11CABCD12DABCD13AABCD14BABCD15CABCD16DABCD17AABCD18BABCD19CABCD20DABCD21AABCD22BABCD23AABCD24BABCD25CABCD26DABCD27AABCD2840-20-4020%BABCD12345Albrecht67PutnamL=CkE1/3td4/38E=L3/(Ck3td4)td9Rayleigh-Norden10td4td11Putnam12CoCoMoCoCoMoCoCoMoCoCoMo13CoComo14NCN=NN-1/215McCall16GVG17McCabeVGVGVG1018Halstead1920Att212223242526272829Boehm30[ripixi]ripiixii31[ripixi]riipixii32[ripixi]riipiixi33343540-20-4036CPMPERT37PERTCPM383940414243441measure2metric3estimation4guideline56AtAtt1234412345CoCoMoCoCoMoCoCoMoCoCoMoCoCoMo61983ANSI/IEEEstd72912347McCallMcCall8K.Magel612345691212345678CallbyreferenceCallbyvalue910111210123451112[ripixi][ripixi]riipiixii=12,lli1312[ripixi]341412315123416SQASQA123FTR45678SQASQA17FTR6FTR6181932012~512122312~72324332526271M=6=20.2KLOCE=43PMS=314000N=64Pd=1050PCEQRDP=L/E=20.2KLOC/43PM=0.47KLOC/PM=470LOC/PMC=S/L=314000/20.2KLOC=15.54/LOCEQR=N/L=64/20.2KLOC=3.17/KLOCD=Pd/L=1050/20.2KLOC=51.98/KLOC2M=3=12.1KLOCE=24PMS=168000N=29Pd=365PCEQRDP=L/E=12.1KLOC/24PM=0.504KLOC/PM=504LOC/PMC=S/L=168000/12.1KLOC=13.88/LOCEQR=N/L=29/12.1KLOC=3.4/KLOCD=Pd/L=365/12.1KLOC=31.4/KLOC330602482AlbrechtCTCT=4+5+4+10+7=304+605+244+810+27=610FP=CTTCF=CT[0.65+0.01Fi]=610[0.65+0.01314]=652.7652.741978PutnamL=CkE1/3td4/3td20%L=CkE1/3td4/3E=L3/(Ck3td4)1td1=1.2tdE1=L3/(Ck3td14)2E1/E=[L3/(Ck3td14)]/[L3/(Ck3td4)]=td4/td14=td4/(1.2td)4=0.48E1=0.48E48%5CAD33.5KLOCCADa=3.0b=1.12c=2.5d=0.35CoCoMoCADE=aLb=3.033.51.12=153PMD=cEd=2.51530.35=14.54N=E/D=153/14.5411CAD153PM14.5411650.13PMN=5=0.13PMCN=C5=NN-1/2=55-1/2=105EC=5=0.13PM10=1.3PM1.3PM7F2C23=0.2C24=0.3C25=0.3C26=0.2C2k=0F2M3=0.8M4=0.7M5=0.6M6=0.5F2=C23M3+C24M4+C25M5+C26M6=0.20.8+0.30.7+0.30.6+0.20.5=0.65F20.658F2C23=0.1C24=0.3C25=0.4C26=0.2C2k=0F2M3=0.7M4=0.6M5=0.5M6=0.8F2=C23M3+C24M4+C25M5+C26M6=0.10.7+0.30.6+0.40.5+0.20.8=0.61F20.619F6C63=0.1C66=0.2C610=0.2C616=0.1C618=0.2C621=0.2C6k=0F6M3=0.7M6=0.6M10=0.8M16=0.8M18=1M21=0.9F6F2=C2kMk21k=1F2=C2kMk21k=1=C63M3+C66M6+C610M10+C616M16+C618M18+C621M21=0.10.7+0.20.6+0.20.8+0.10.8+0.21+0.20.9=0.81F60.8110F1C11=0.3C12=0.3C13=0.4C1k=0F1M1=0.7M2=0.9M3=0.6F1=C11M1+C12M2+C13M3=0.30.7+0.30.9+0.40.6=0.72F10.72111VG112VG=EN+2=119+2=422R1R2R331R44VG=432bchP=3VG=P+1=3+1=4121VGabchgfdei12abcfghdeiR1R2R3R41234567891011F6=C6kMk21k=1F1=C1kMk21k=121VG=EN+2=1310+2=52VG==53VG=+1=P+1=4+1=5131VG21VG=EN+2=129+2=52VG==53VG=+1=P+1=4+1=51424abcdejfghi12dbcfhgeijR2R1R3R4R512356710111213894aabcdiefgh12dbcegfhiR2R1R3R4R5123567101112894a2010E1=24E2=20E0=10ET=E1E2/E0=2420/10=48Er=ETECEr1=ETEC1=ETE1+E2E0=4824+20-10=14141520168E1=20E2=16E0=8ET=E1E2/E0=2016/8=40Er=ETECEr1=ETEC1=ETE1+E2E0=4020+16-8=121216242312E1=24E2=23E0=12ET=E1E2/E0=2423/12=46Er=ETECEr1=ETEC1=ETE1+E2E0=4624+23-12=11111710000LOC15MTBF=10h10MTBF=15h1MTBF2MTBF=100h1=krMTBF=1/Er=ITr=IT/(kMTBF)Ec=ETIT/kMTBF15=ET10000/k1015+10=ET10000/k15ET=45,k=100/3Er1=k1ET1k1Er1=k12ET2Er=k1ET314515=k145k1=2/3MTBF=IT/kEr=IT/kk1ET=10000/[100/32/345]=6.6666673/242MTBF()=1004100=6.6666673/2=ln15/ln1.5=6.68=6.683Er6.68=(2/3)6.6845=2.99863Ec6.68=ETEr6.68=453=421MTBFMTBF=6.6666673/22MTBF=100h6.684231AABCD2CABCD3BABCD4CABCD1424344456789101112112123312345123456123457?123458123456944123410123111212343451312345614123451100005000410%TDjNn(1+i)n150001.14545.454545.45250001.214132.238677.68350001.3313756.5712434.25450001.46413415.0715849.321T=PTST=15849.3210000=5849.322D=2+100008677.68/3756.57=2.3523S=F1(1+j)1+F2(1+j)2+F3(1+j)3+F4(1+j)410000=5000(1+j)1+5000(1+j)2+5000(1+j)3+5000(1+j)4=5000[(1+j)1+(1+j)2+(1+j)3+(1+j)4]2=(1+j)1+(1+j)2+(1+j)3+(1+j)4j34.9%5949.322.35234.9%250002500512%TDjNn(1+i)n125001.122232.142232.14225001.25441992.984225.12325001.4049281779.456004.57425001.573519361588.807593.37525001.7623416831418.579011.941T=PTST=9011.9410000=4011.942D=2+50004225.12/1779.45=2.443S=F1(1+j)1+F2(1+j)2+F3(1+j)3+F4(1+j)4+F4(1+j)55000=2500(1+j)1+2500(1+j)2+2500(1+j)3+2500(1+j)4+2500(1+j)5=2500[(1+j)1+(1+j)2+(1+j)3+(1+j)4+(1+j)5]2=(1+j)1+(1+j)2+(1+j)3+(1+j)4+(1+j)5j41%4011.942.4441%1ABCDC2ABCDA3DFDABCDB4ABCDD5ABCDB6ABCDB7ABCDD8SADFDABCDD9ABCDD10DFDABCDA11ABCDD12SAABCDA13SAABCDC14ABCDB15____A.B.C.D.D16.______A..BC.DB17________()A.B.C.D.A18_____ABCD:C19_____AB.CD:A20_____ABCD:C21_______ABIPOCPDLDDFD:D22.ABCD:B23ABCD:D24ABCD:D25______ABCD:A26_______ABCD:A27.ABCD:B28.ABCD:C29ABCD:B30ABCD:D31ABCD:C32ABCD:D33SASDJACKSONSASDABCD:D34()ABCPADD:C35()ABC:C37()ABcD:D38()ABcD:C39()ABCD:A40()ABCD:B41(SA)()ABCD:C42.()ABCD:B43()ABCDAB:C44()ABCD:C45()ABIF-THEN--ELSE-ENDIFCDCASE-OF-ENDCASE:D46()ABcD:B47()ABCD:D48()ABcD:D49()ABCD:B50(SA)()ABCD:C51()ABCD:B52DFD()ABcD:B53()ABCD:D54()ABCD:D55()ABcD:A56()ABCD:C57SADFD()ABCD:D58SA()ABCD:A59()ACBD:D60(SA)()ABCD:C61sA()ABCD:C62()ABcD:C63()ABCD:B64()ABcD:D65()ABCD:B66(B)A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