1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS X ISO/IEC TR 9126 2 2： KS X ISO/IEC TR 9126 2:2008 2008 10 31 http:/www.kats.go.krKS X ISO/IEC TR 9126 2:2008 : ( ) ( ) () ()SJ ( ) : (JTC1/SC7) () ( ) () TTA () LRQA LG-CNS SDS KS X ISO/IEC TR 9126 2:2008 : (http:/www.standard.go.kr) ： ： 2005 12 27 ： 200
2、8 10 31 2008-0738 ： ： (JTC1/SC7) ( 025097262) (http:/www.kats.go.kr). 10 5 , . KS X ISO/IEC TR 9126 2:2008 i ii .1 1 1 2 2 3 2 4 2 5 2 6 3 7 .4 8 .4 8.1 (functionality metrics) 5 8.2 14 8.3 25 8.4 39 8.5 .51 8.6 59 A( ) .67 A.1 67 A.2 68 A.3 ( ) ( ) .69 A.4 70 A.5 .71 B( ) , ( ).72 B.1 .72 B.2 .72 B
3、.3 .73 C( ) .78 C.1 .78 C.2 79 D( ) .84 D.1 .84 KS X ISO/IEC TR 9126 2:2008 86 KS X ISO/IEC TR 9126 2:2008 ii . ISO/IEC 9126 4 . 1： (KS X ISO/IEC 9126 1) 2： (KS X ISO/IEC TR 9126 2) 3： (ISO/IEC TR 9126 3) 4： (ISO/IEC TR 9126 4) KS X ISO/IEC TR 9126 2 . A( ) B( ) , ( ) C( ) D( ) KS X ISO/IEC TR 9126
4、2:2008 2： Information technology Software engineering Product qualityPart 2： External metrics 2003 1 ISO/IEC TR 9126 2, Software engineering Product qualityPart 2： External metrics . 1 KS X ISO/IEC 9126 1 (external metrics) , KS X ISO/IEC 9126 1 . . a) b) c) . , . , . . , . , IEC 60065 ISO/IEC JTC 1
5、/SC 27 . . ( , ) KS X ISO/IEC TR 9126 2:2008 2 ( . , , , .) ( , ) ( ) ( , ) ( ) ( ) 2 . KS X ISO/IEC 9126 1 . 3 . . ( .) . KS A ISO 9241 10, 10： KS X 2222 1, 1： KS X ISO/IEC 9126 1, 1： KS X ISO/IEC 12207, KS X ISO/IEC 14598 1, 1： KS X ISO/IEC 14598 2, 2： KS X ISO/IEC 14598 3, 3： KS X ISO/IEC 14598 4
6、, 4： KS X ISO/IEC 14598 5, 5： KS X ISO/IEC 14598 6, 6： ISO/IEC 2382 20： 1990, Information technology Vocabulary ISO/IEC TR 9126 3： 2003, Software engineering Product quality ISO/IEC TR 9126 4： 2004, Software engineering Product quality 4 KS X ISO/IEC 14598 1 KS X ISO/IEC 9126 1 , D . 5 . KS X ISO/IE
7、C TR 9126 2:2008 3 SQA (Software Quality Assurance) SLCP (Software Life Cycle Processes) 6 (KS X ISO/IEC TR 9126 2 , ISO/IEC TR 9126 3 , ISO/IEC 91264 ) KS X ISO/IEC 9126 1 . . KS X ISO/IEC 9126 1 . KS X ISO/IEC 9126 1 , . KS X ISO/IEC 14598 (quality evaluation process) . , . , , ( 1 ). 1 (internal
8、metrics) ( , , ). , . , . (external metrics) . . . (quality in use metrics) , , . , . . . . . . KS X ISO/IEC TR 9126 2:2008 4 . . , . KS X ISO/IEC 9126 1 A.4 , A . 7 8. KS X ISO/IEC 9126 1 . . a) . b) . c) . d) , . . e) . f) (scale) . (nominal scale), (ordinal scale), (interval scale), (ratio scale)
9、, (absolute scale) . C . g) (size) ( , , ), (time) ( , , ), (count) ( , , ) . C . h) i) KS X ISO/IEC 12207 SLCP . j) . 8 , . KS X ISO/IEC 9126 1 . . , . 1 , . KS X ISO/IEC 14143 , KS X ISO/IEC 14756 . ( A ). 2 , . . KS X ISO/IEC TR 9126 2:2008 5 8.1 (functionality metrics) . . a) 1 . b) (implied) 2
10、. . 8.1.1 . . a) b) 8.1.2 . a) , b) c) 8.1.3 , . 8.1.4 . a) b) KS X ISO/IEC TR 9126 2:2008 6 c) 1 . . , . 2 . . . (IT) . 8.1.5 , , . 8.1.1 , KS X ISO/IEC 12207 SLCP ? X 1 A/B A B 0 . ? . X A1/A2 A1 A2 0 . 15KS X ISO/IEC TR 91262:2008 8.2.1 ( ) , KS X ISO/IEC 12207 SLCP ? . . X A1/A2 A1 A2 0 . 4 . ,
11、. , , . 16 KS X ISO/IEC TR 91262:2008 8.2.1 ( ) , KS X ISO/IEC 12207 SLCP ? . a) X=A1/A2 A1 A2 b) Y A1/A3 A3 0 . 5 . . (MTBF) ? . a) X T1/A b) Y T2/AT1 T2 A ( ) 0 X,Y . a) b) A Count T1 Time T2 Time X, Y Time/ Count ( ) 5.3 5.3 5.4 5.4 1 . , 2 . 3 (X, Y) . 17KS X ISO/IEC TR 91262:2008 8.2.1 ( ) , KS
12、 X ISO/IEC 12207 SLCP ( ) ? . X A/B A B 0 . 21KS X ISO/IEC TR 91262:2008 8.2.3 ( ) , KS X ISO/IEC 12207 SLCP ? .X Sum(T)/B T N 0 . ? , . X A/B A B 0 = X = 1 1.0 . A Count B Count X Count/Count 5.3 5.3 5.4 6.5 1 , , , . 2 . 22 KS X ISO/IEC TR 91262:2008 8.2.3 ( ) , KS X ISO/IEC 12207 SLCP ? . ： , , , X A/B A B 0 = X = 1 1.0 . A Count B Count X Count/Count 5.3 5.3 5.4 6.5 . ? . X A/B A B 0 = X = 1 1.0 . A Count B Count X Count/Count 5.3 5.3 5.4 6.5 . 23KS X ISO/IEC TR 91262:2008 8.2.4 , KS ISO/IEC 12207 SLCP , ?
