difference between coupling and cohesion in software engineering ppt

We have defined them below: Types of Cohesion Some of them are worst, while some of them are best. Types of Cohesion: There are many different types of cohesion in the software engineering. The module complexity also reduces, when there is a high cohesion in the programming.The system maintainability will be increased due to logical changes in the domain effecting fewer modules.High cohesion leads to the increased module reusability because the developers of the application will easily find the component they look for in the cohesive set of operations offered by the module.Here are some advantages of the high cohesion.

Low cohesion often correlates with the loose coupling and vice versa. If the functionalities embedded in a class have much in common, then the cohesion will be increased in a system.Ĭohesion has close relation with the coupling, which is completely a different concept. On the other hand, a low cohesion is associated with the undesirable traits, including difficulty in maintaining, reusing and understanding. In a good module, the various parts having high cohesion is preferable due to its association with many desirable traits of the software such as reliability, reusability, robustness and understandability. It is an ordinal type of measurement, which is described as low cohesion or high cohesion. In general, it measures the relationship strength between the pieces of functionality within a given module in the software programming. Explain Cohesion and Coupling With Types in Software EngineeringĬohesion: Cohesion can be defined as the degree of the closeness of the relationship between its components.

Difference between coupling and cohesion in software engineering ppt