Course

Unit I 

Software Engineering – Introduction – Software Classification – Layered Technology – SDLC – Generic Process Model, Perspective Models – Agile Process Models – Scrum and Extreme Programming (XP) – Design Engineering – Reengineering

Unit II

Introduction: What Is a Design Pattern? Describing Design Patterns, The Catalogue of Design Patterns, Organizing the Catalogue, How Design Patterns Solve Design Problems, How to Select a Design Pattern, How to Use a Design Pattern.

Unit III

Creational Patterns: Abstract Factory, Factory Method, Prototype, Singleton – Comparisons of various creational patterns – Discussion of Case studies – ex: Cross-Platform UI Framework – Banking solution – Cloud Notification Service etc.,

Unit IV

Structural Patterns: Adapter, Bridge, Composite, Decorator, Façade, and Proxy – Comparisons of various structural patterns – Discussion of Case studies – ex: Payment gateways, ERP migrations etc.,

Unit V

Behavioral Patterns: Command, Iterator, Mediator, Observer, State and Template Method. Comparisons of various behavioral patterns – Discussion of Case studies – ex: smart homes, Smart Factory Automation etc.,

Course Description 

This course introduces the intent, structure, and application of design patterns, followed by in-depth study of creational (Abstract Factory, Factory Method, Prototype, Singleton), structural (Adapter, Bridge, Composite, Decorator, Façade, Proxy), and behavioral (Command, Iterator, Mediator, Observer, State, Template Method) patterns with comparative analysis and case studies to support reusable, robust software design. It covers core software engineering principles and object-oriented design patterns for building scalable and maintainable systems. It also deals with software classification, layered architecture, SDLC, generic and agile process models (Scrum, XP), process assessment, design engineering, and reengineering. 

Course Objectives 

• To understand the idea of software engineering process models by analyzing SDLC, layered architecture, agile methods (Scrum, XP), and reengineering techniques for systematic software development. 

• To identify, compare, and implement object-oriented design patterns including creational, structural, and behavioral patterns to produce scalable, reusable, and maintainable software architectures. 

• To develop robust software designs using pattern-based solutions through case studies and practical analysis to improve flexibility, performance, and quality in real-world applications. 

Course Outcomes 

CO-PO Mapping 

Prerequisites  

Object oriented programming languages 

• Roger S. Pressman, “Software Engineering-A Practitioner’s Approach”, Seventh Edition, Tata McGraw-Hill, 2010.
• Richard Fairley, “Software Engineering concepts”, Tata McGraw-Hill Publishing Company Pvt. Ltd., Ninth Edition
• Patterns in JAVA Vol-I By Mark Grand, Wiley Dream Tech.
• Head First Design Patterns by Eric Freeman-O’Reilly-spd