Design Patterns
Literature Review
Chapter One
Introduction
What is a Design Pattern?
A design pattern solves a problem within a given context. The solution that is offered by implementing a pattern results in a system design structure, which balances the concerns of the design problem in a manner most appropriate for the given context. In “Understanding and Using Patterns in Software Development”, Dirk Riehle and Heinz Zullighaven offer a rather nice definition of what a design pattern is:
“A pattern is the abstraction from a concrete form which keeps recurring in specific non-arbitrary contexts.”
The ability to write good patterns is very difficult. A pattern should not only convey the facts about a system, but it should also tell a story about the system. It should allow the systems users to comprehend it, be able to customize it to accommodate new features.
Elements of a Design Pattern
A design pattern can be made up of the following components:
Name
The design......
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