TY - BOOK AU - Valacich, 1959- AU - George, Joey F. AU - Hoffer, Jeffrey A. TI - Essentials of systems analysis and design SN - 0132017563 U1 - 004.21 VAL 2006 PY - 2006/// CY - Upper Saddle River PB - Pearson Prentice Hall KW - System analysis KW - System design N1 - Includes index p.443 - 450 ER -