A firm grounding in the theory of object-oriented analysis and design and its practical application is essential for understanding how to build good software. This book, the third of the Magnifying Series, attempts to explain the object-oriented analysis and design of software through case studies covering various business domains. The book describes various software development models and techniques before introducing the concepts and principles of object-oriented analysis and design. It explains analysis models with the help of business process diagrams, use-case diagrams, class diagrams and object diagrams. The book elaborates design models through sequence diagrams, collaboration diagrams, statechart diagrams and activity diagrams. It also deals with implementation models with the help of component and deployment diagrams. For each diagram, its purpose, notations and design guidelines are given. In addition, the book explains existing object-oriented methodologies. KEY FEATURES: Develops a framework for analysis of business cases followed by design of software solutions for them. Includes several case studies to depict the application of object-oriented analysis and design. Presents chapter-end exercises for the students' comprehension of the subject matter. The text is designed for the students of computer applications (BCA/MCA), computer science (B.Sc./M.Sc.), and computer science and engineering (BE/B.Tech).