:
:
1) () ;
2) , .
( ). , , , (CASE-) -.
, (, Price Waterhouse, Jet Info, Consistent Software .
, , , , , , . . () , - D.
(, , ..) , ( -) . , .
34.601-90. (ISO1220:1995). , , .
(Top-of-Design); , , ( , );
(Bottom-of-Design);
(Middle-of-Design).
- .