What is the significance of Design Patterns in software engineering and how are they used? Provide a brief description of any three design patterns, along with an appropriate example.

Fundamentals of Information Systems
9th Edition
ISBN:9781337097536
Author:Ralph Stair, George Reynolds
Publisher:Ralph Stair, George Reynolds
Chapter8: System Acquisition And Development
Section: Chapter Questions
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What is the significance of Design Patterns in software engineering and how are they used? Provide a brief description of any three design patterns, along with an appropriate example.

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