The highly regarded textbook, Software Systems Development: A gentle introduction, provides a firm grounding in the principles of this topic in a clear, concise and lively form. The authors explain techniques and practices that are universally applicable to software systems development using a traditional structured approach, providing a solid background for aspiring software developers to build upon. This new edition has been thoroughly updated to develop coverage of topics such as SQL, agile methods and object-orientation. The authors' accessible, jargon-free approach to systems analysis and design is ideally suited to computer science students on an introductory course or to those from other disciplines with an interest in software development.