Question

Analyse the relationship between the object-orientated paradigm and design patterns.

Answer 1

Object orientated paradigm is not any programming language, but a set of concept that is followed by many languages. In Object orientated paradigm, we are orientated and focused around object. An object is nothing but a self-contained component which consists of methods and properties to make a particular type of data useful. Object determines the behavior of the class.

A design pattern describes a particular class of design problem, and details an approach to solving that class of problem that has proven effective in the past. Design patterns don't guarantee an absolute solution to a problem. They provide clarity to the system architecture and the possibility of building a better system. Design patterns ease the analysis and requirement phase of Software Development Life Cycle by providing information based on prior hands-on experiences. One particular benefit of a design pattern is that it combines the problem description and the solution description together and gives them a name. Having a simple and memorable name for a pattern is particularly valuable. If both developer and reviewer know the same names for the same patterns, then a significant design decision can be communicated in one or two words, thus making the decision much more visible.

A design patterns are well-proved solution for solving the specific problem. This solution is robust, scalable, readable and flexible. Design patterns are programming paradigm independent strategies for solving the common problems. Design Pattern can be written in non object orientated paradigm. For example Linux design pattern are written in C that is a procedural programming language. That means, a design pattern represents an idea, not a particular implementation. So the relationship between the object oriented paradigm and design pattern is, we can implement design pattern by using object orientated paradigm.