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 favoured 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.