Object-oriented Systems Development Ali Bahrami Ppt May 2026

Most textbooks stop at design. Bahrami’s PPT goes further:

While Bahrami’s work is foundational, some limitations noted in academic reviews include:

This is the heart of the presentation. Bahrami dedicates significant visual space to these concepts:

Object-oriented systems development provides a powerful framework to build complex software aligned with real-world concepts. When applied with solid design principles and appropriate patterns, it yields systems that are extensible, maintainable, and easier to understand.

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To illustrate the core principles of Ali Bahrami's Object-Oriented Systems Development, imagine a team of engineers tasked with building a modern "Smart City" from the ground up. The Blueprint: The Unified Approach (UA)

Before laying a single brick, the lead architect (following Bahrami’s Unified Approach) decides they won't just build a list of tasks. Instead, they view the city as a collection of cooperating and collaborating objects, such as "Traffic Lights," "Emergency Vehicles," and "Citizens". Phase 1: Analysis (Use-Case Driven) object-oriented systems development ali bahrami ppt

The team begins by observing the citizens. They identify Use Cases—typical interactions like "Requesting an Ambulance" or "Paying a Utility Bill".

The Object Model: They realize a "Vehicle" is a general Class, while a specific "Red Fire Truck #42" is an Object.

Encapsulation: Each traffic light is a "black box" that manages its own timing (data) and switching (methods) without needing the central mayor to tell it exactly how to flip a switch. Phase 2: Design (Layered Architecture)

To keep the city organized, the team uses a Layered Architecture:

View Layer: The sleek touchscreens citizens use to interact with the city.

Business Layer: The core logic—how a "Traffic Light" talks to a "Smart Car" to prevent crashes. Most textbooks stop at design

Access Layer: The secure underground vaults where all city data is stored. Phase 3: The Power of Reusability

Suddenly, the city needs a "Police Car." Instead of designing it from scratch, they use Inheritance. They take the existing "Vehicle" blueprint and just add sirens and radios. When they need a "Motorcycle," they use Polymorphism, so the "Start Engine" command works for both a car and a bike, even though the internal mechanics are different. The Result: A Robust System

Because they used Ali Bahrami's methods, the city isn't a tangled mess of procedures. It is a flexible, modular system where parts can be easily replaced, modified, and reused as the city grows. Object Oriented Systems Development by Ali Bahrami

In his influential work, Object-Oriented Systems Development , Dr. Ali Bahrami

introduces a comprehensive methodology known as the Unified Approach (UA). This framework integrates the best practices of industry pioneers like Booch, Rumbaugh, and Jacobson, utilizing the Unified Modeling Language (UML) as the standard notation for modeling and documentation. Core Concepts of Bahrami's OOSD

The methodology shifts the focus from traditional procedural programming to a world of interacting, self-contained objects. This is the heart of the presentation

Discrete Objects: Software is viewed as a collection of objects that encapsulate both data (attributes) and functionality (methods). Orthogonal Views: The approach balances two perspectives: The Object View: Focuses on what the system is made of. The Process View: Focuses on what the system does.

Layered Architecture: Applications are developed using a multi-layered approach—typically comprising a View Layer (user interface), a Business Layer (logic), and an Access Layer (data storage)—to promote modularity and reuse. The Systems Development Life Cycle (SDLC)

Bahrami outlines an iterative and incremental life cycle that encourages continuous refinement:

Overview of Object Oriented Systems Development | PDF - Scribd

When educators search for Bahrami’s PowerPoint materials, they are looking for specific pedagogical strengths: