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Design patterns are codified solutions to common Object-Oriented Design (OOD) problems in software development. One of the proclaimed benefits of the use of design patterns is that they decouple functionality and enable different parts of a system to change frequently without undue disruption throughout the system. These OOD patterns have received a wealth of attention in the research community since their introduction; however, identifying them in source code is a difficult problem. In contrast, metapatterns have similar effects on software design by enabling portions of the system to be extended or modified easily, but are purely structural in nature, and thus easier to detect.
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