Advantages of Modular Programming in C

A large program is divided into small modules. The basic idea is – “to develop a small set of statements is comparatively simpler”. The C provides the facilities of functions to support modular programming.

Modularization is a design time activity. To take full advantage of modularization, modules should be independent of one another. One module should perform one atomic task. One module should not be given to many responsibilities.

Advantages of Modular Programming- Following are the advantage of modular programming.

(i)      Simplicity in development – It is easier to develop a small set of statements as compared to a large one. It is also easier to concentrate on a small code.

(ii)    Faster development – A big task is divided into logically separate many small task. The development of these small modular task can be done simultaneously. In this way, development can be done in less time.

(iii)  Reusability – If a module is developed in such a way that it is logically independent from other modules, then it can be used again and again. it saves time and efforts, so software code reduced.

(iv)  Abstraction – Abstraction means hiding of details. Hiding of details. Hiding of detail provides simplicity. Functions once developed can be called at many places. Each time when it is called, there is no need to concentrate on its implementation details. It reduces complexity and enhances clarity. Abstraction provides more opportunity to concentrate on the higher level logic of a program/task.

(v)    Reduced code size – When a set of statements used at many places, it is better to design a function for this code and call it at multiple place. It drastically reduces the code size.

Simplicity in testing and modification – Modular programming gives the opportunity to concentrate on a confined area. It provides easiness in testing. Moreover, modification in a module is simpler as compared to modification in the complete program.