TY - BOOK AU - Valacich,Joseph S. AU - George,Joey F. AU - Hoffer,Jeffrey A. TI - Essentials of systems analysis and design SN - 0130183733 (pbk.) PY - 2001/// CY - Upper Saddle River, N. J. PB - Prentice Hall KW - System design KW - System analysis N1 - Includes bibliographical references and index ER -