(behavioral requirements). " " . " " , , , .
, , : " ". (uses cases) - .
- , , .
, , . . :
(External Interfaces),
(Quality Attributes),
(Constraints).
(User Interface, UI). , ( ), ( ).
:
,
,
,
,
FURPS (. ).
- , , . / (, , ,...), , , , , ( ).
. . , "" (feature), , -.
: "features , ".
. , " , features , , ".
: , , , , -.
RUP
Rational Unified Process FURPS+ IEEE Std 610.12.1990.
FURPS :
Functionality ()
Usability ()
Reliability ()
Performance ()
Supportability ( ).
"+" FURPS-, :
,
,
,
,
.
, RUP ,
, ;
,
.