TY  - BOOK
AU  - Sommerville,Ian
AU  - Sawyer,Pete
TI  - Requirements engineering: a good practice guide 
SN  - 9780471974444 (pbk.) :
PY  - 1997///
CY  - Chichester
PB  - Wiley
KW  - Systems engineering
KW  - Software engineering
KW  - Digital  Lifestyle
N2  - Requirements engineering is a new term for an old problem, in the past known as systems analysis. Requirements are precise statements that reflect the needs of customers and users of an intended computer system
ER  -