CSC/ECE 517 Fall 2011/ch4 4h kp

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Introduction

This wiki article discusses about some of the commonly used & easy to understand Desgin patterns[1] in the software industry. Specifically, we will be studying about the Singleton, Adapter, Command & Strategy patterns.

Design Pattern

Definition

Some of the common definitions available online are as follows.

  • "A design pattern is a repeatable solution to a software engineering problem. Unlike most program-specific solutions, design patterns are used in many programs. Design patterns are not considered finished product; rather, they are templates that can be applied to multiple situations and can be improved over time, making a very robust software engineering tool. Because development speed is increased when using a proven prototype, developers using design pattern templates can improve coding efficiency and final product readability." -Techopedia <ref>Techopedia explains Design Pattern</ref>

In a layman's term, Design Patterns are descriptions of

Examples

Singleton

Adapter

Command

Strategy

Conclusion

References

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External Links