‎"‎Information systems development‎"‎ has been adopted as the key text for many information systems‎,‎ business and management‎,‎ and computer science courses‎.‎ The book has seven parts which relate to the information systems development context‎,‎ the systems development lifecycle‎,‎ themes of systems development‎,‎ techniques‎,‎ methodologies‎,‎ tools and toolsets and finally issues and frameworks‎.‎ This structure enables flexible use‎,‎ either sequentially or by selecting sections or chapters to fit the specific needs of particular courses and favored approaches‎.‎ Offering comprehensive coverage from traditional approaches through to the most recent agile methods‎,‎ the book‎'‎s unique strength lies in its combination of descriptions and insight into methodologies‎,‎ techniques and tools with the analysis of context‎,‎ issues and real‎-world problems associated with information systems development‎.‎Retaining these existing strengths‎,‎ the fourth edition has been thoroughly updated and revised to reflect progress in this fast‎-paced discipline and to include the authors‎'‎ recent experience of teaching with the text‎,‎ as well as feedback from reviewers‎,‎ colleagues and students‎.‎