حل تشریحی سوال شماره 30 زبان عمومی و تخصصی (انگلیسی)

In object-oriented programming, if the methods of a class tend to be similar in many aspects, then the class is said to have high cohesion. In a highly cohesive system, code readability and reusability is increased, while complexity is kept manageable. Cohesion is increased if: 1- The functionalities embedded in a class, accessed through its methods, have much in common. 2- Methods carry out a small number of related activities, by avoiding coarse-grained or unrelated sets of data. Advantages of high cohesion (or "strong cohesion") are: 1- Reduced module complexity (they are simpler, having fewer operations). 2- Increased system maintainability, because logical changes in the domain affect fewer modules. 3- Increased module reusability, because application developers will find the component they need more easily among the cohesive set of operations provided by the module.