Whitten, Jeffrey L. . Systems analysis and design methods / Jeffrey L. Whitten, Lonnie D. Bentley, Kevin C. Dittman. - 6th ed. - Boston, Mass. : Irwin/McGraw-Hill, 2004. - xix, 780 p. : ill. (some col.) ; 29 cm. Includes bibliographical references and index. ISBN: 0072315393 (alk. paper) Subjects--Topical Terms: System design.System analysis. Dewey Class. No.: 004.21