CASE- Vantage Team Builder (Westmount I-CASE) . . ER- , ( 4.19), - , . .
. 4.19.
( ). :
- (optional);
- (weak).
( 4.20) .
. 4.20.
(total) . , -. 4- : , , "-" .
(mandatory) "" "" . ("") ("") , .. "" "" .
( 4.21) , , .
. 4.21.
, ("") , (""), .. "" "" . "" "" .
"" . "" "" , "" , . .
4.22: () .
.4.22.
"-" 4.23. () --, - . . ( ). , , . .
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. 4.23. "-"
( ) - . - , . - "" "" . - , . , .
4.24 - . - , , . , , , .
. 4.24.
(*).
ER- :
- , ( );
- ;
- ;
- , ;
- ;
- . , "-" () ;
- "-" ;
- () ;
- , "-" .