Basic Design Patterns in Ruby on Rails

Not only as programmers, but in day-to-day life, we encounter some problems. Every person has similar difficulties, and our society has found universal ways, patterns, to solve that problems. As programmers we also have problems, which can be solved by patterns. Our beloved Wikipedia says, thatsoftware design pattern is a general reusable solution to a commonly occurring problem within a given context in software design. It is not a finished design that can > be transformed directly into source or machine code. It is a description or template for how to solve a problem that can be used in many different situations. Design > > patterns are formalized best practices that the programmer can use to solve common problems when designing an application or system.