Design Patterns Workshop Brandon Savage Who am I? • Former Mozillian; teacher, writer, speaker. • Author of Mastering Object Oriented PHP and Practical Design Patterns in PHP. • Instrument rated private pilot. What is a design pattern? A design pattern is a general reusable solution to a commonly occurring problem within a given context in software design. That doesn't seem so hard, right? ...general[ly] reusable solution... ...commonly occurring problem... Design patterns are abstract! You're probably using design patterns without knowing it. What is NOT a design pattern?