Great design patterns are reusable, modular expressions of what’s going on in your code. They allow you to communicate to other developers simply by the way you code, in addition to being easily maintainable themselves. Put simply, patterns are the available tools in the developer’s toolbox.
In this presentation, I review a few common patterns, their advantages/disadvantages, and how they can be implemented.
The source for this presentation can be found here: https://github.com/derekbrown/designpatterns