Design Patterns

1Why Pattern?

Design patterns are basically design tools to improve existing code. Like a carpenter who uses a nail gun instead of a hammer to build a house because he does not hit his thumb and can nail a house together in days instead of weeks, design patterns allow the code you write to be easier to implement, build, and maintain. They are tools to improve efficiency but more importantly allow you as the developer to improve your overall design skills as well as the quality of your projects, and give you a wider scope of skill sets. They allow you to see new answers to common and specialized problems. They define a common programming model, which can translate across to other developers also familiar with patterns. They standardize common ...