Avison, D. E. Information systems development : methodologies, techniques, and tools / D.E. Avison and G. Fitzgerald. - 4th ed. - London: McGraw-Hill, 2006 - xxi, 645 p. : ill. ; 25 cm. Includes bibliographical references and indexes. ISBN: 9780077114176 (pbk) Subjects--Topical Terms: System design. System analysis Dewey Class. No.: 004.024658 /2 20