In Computer science, a Design pattern is an abstract solution to a certain problem. Design patterns are used in object oriented programming. They give a possible solution to a problem of designing software.

Design patterns became popular around the year 1995. They also simplify the language between computer scientists. Ideally, a design pattern should be reusable many times. It is like a brick of a house, it can be used for many different problems. One can also build bridges with bricks, not only houses. view more...