CO2401 Software Development Lecture 16 Notes

CO2401: Software Development
Lecture 16
Introduction to Software Architecture Patterns
1. Definition:
o Software Architecture Patterns: These are abstract, reusable
solutions to common problems encountered in software
architecture. They describe a system organization that has been
successful in previous systems.
o Purpose: Helps define the basic characteristics and behavior of an
application, guiding decisions in the development process.


Why Use Software Architecture Patterns?
1. Benefits:
o Code Recognizability: Makes code recognizable and
understandable to other developers.
o Decision Support: Assists in making informed design decisions.

o Standardization: Promotes the use of best practices in system
design, ensuring consistency across different systems.


Design Patterns vs. Architectural Patterns
1. Design Patterns:
o Focus on solving specific design problems within a component or
module.
o Concerned with the implementation details of classes and objects.

2. Architectural Patterns:
o Address higher-level design decisions affecting the overall system
structure.
o Deal with large-scale components, subsystems, and their
interactions.