Object-oriented Systems Development Ali Bahrami Ppt May 2026

Ali Bahrami’s Object-Oriented Systems Development (and the associated PPT presentations) provides a clear, systematic, and pedagogically effective roadmap for adopting object-oriented methods. By emphasizing an integrated life cycle of OOA, OOD, and OOP—coupled with strong modeling discipline—Bahrami equips developers to build more resilient, reusable, and maintainable software. His work remains a valuable reference for students and practitioners transitioning to the object-oriented paradigm.

Bahrami begins his analysis by critiquing conventional functional decomposition. In traditional structured methods (e.g., Waterfall, SA/SD), the focus is on processes or functions that transform data. Data and actions are treated as separate entities. This separation leads to several problems: data specifications are often global and vulnerable to unintended side effects; changes in data structures ripple through multiple functions; and the system's structure mirrors the flow of control rather than the real-world entities. Bahrami notes that this approach becomes brittle as system size increases, leading to the "software crisis" of high costs, missed deadlines, and low maintainability. object-oriented systems development ali bahrami ppt

Object-oriented systems development (OOSD) is a methodology for analyzing, designing, and implementing software using the concepts of objects, classes, inheritance, encapsulation, polymorphism, and abstraction. It maps real-world entities to software components to improve modularity, reusability, and maintainability. Deliverable: Analysis model (conceptual model