Design Patterns are solutions to the recurring problems. There are different types of patterns. The most basic ones are the Design Patterns. Then there are higher level patterns like Enterprise Design Patterns. We can classify patterns based on different criteria. The classic Gang of Four Design Patterns (GoF) are the foundation for recurring software problems. These consists of 23 patterns which mostly deal with the low level design of software. These patterns are solutions or in fact templates for making the code more and more reusable and maintainable. One of the primary goals of design patterns is to make the software easy to modify and maintain without making large scale changes. Hence most of the Gang of Four patterns talk about adapting the software to new requirements without major modifications to the existing software. They are more into making the software flexible to adapt to new changes.
↧