Design patterns

Proper code design has following advantages:

1. speed up development process by providing tested, proven development paradigms
2. to prevent major issues in later stage of project
3. improves code readability for coders familiar with pattern
4. helps developers to communicate using well known terms
5. makes the design robust

Design patterns types:

1. Creational
• Class creational pattern (use inheritance effectively)
• Object creational pattern (use delegation effectively)
2. Structural
3. Behavioral

Reference: https://sourcemaking.com/design_patterns