NOTE15-비용

NOTE15-비용 -...

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Software Cost Estimation
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n (Productivity) n (Estimation techniques) n (Algorithmic cost modelling) n (staffing)
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n n n n DB n /
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n n n (Effort) : u u , , u u ( , ) u ,
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n . n + n , .
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n (metric) n , . n .
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n u u , ... n u u Function-points n u (metrics)
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n LOC ? u ? u ? u ? u ? n n LOC(Lines of code)
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Function points n IBM A.J.Albrecht n n n n u ( ) * 3 4 6 u ( ) * 4 5 7 u * 3 4 6 u * 7 10 15 u * 5 7 10 <== , , n UFC( Unadjusted Function Points ) u UFC = ( ) ×
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Function points (Cont’d) n n 14 n (0) (5) n (DI)
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Function points (Cont’d) n FP = UFC * ( 0.65 + 0.01 * DI ) n FP FP LOC LOC ( ) Assembly : 320 C : 150 FORTRAN : 106 SMALLTALK : 21 n AVC : n = AVC ×
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n Real-time embedded systems => 40-160 LOC/man-month n Systems programs => 150-400 LOC/man-month n Commercial applications => 200-800 LOC/man-month
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n u n u n Parkinson u , ( ) 12 , 5 => 60 man-month
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(Cont’d) n (Pricing to win) u n u u n u u
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(Cont’d) n u u u LOC u , u : COCOMO, Putnam’s SLIM
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The COCOMO model n TRW , B.W.Boehm n 60 DB n 3 u Basic - u Intermediate - u Advanced -
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NOTE15-&euml;&sup1;„&igrave;š&copy; -...

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