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- #Difference between coupling and cohesion in software engineering ppt full#
- #Difference between coupling and cohesion in software engineering ppt code#
It represents how a module’s attributes or fields are functionally related together. In programming, the ideal way of having a program to be loosely coupled is by using the concept of interfaces.Ĭoupling can be classified based on certain characteristics: It means undesired data would not be passed to another section of code.
#Difference between coupling and cohesion in software engineering ppt code#
Loosely coupled represents less dependency which means that only essential piece of code would depend and communicate with each other. Highly coupled refers to the high dependency of the module with each other. No communication between this type of coupling takes place. Uncoupled signifies no dependencies at all, all the modules or methods have nothing to do with other modules. These are based on their degree of dependencies. It can be viewed as highly coupled, loosely coupled and uncoupled. The measure of how a module depends on other modules is known as coupling.
#Difference between coupling and cohesion in software engineering ppt full#
It is possible to achieve full cohesive modules It is not possible to achieve no coupling among all modules There are 8 types of cohesion: Functional Cohesion,Sequential Cohesion,Communicational Cohesion,Procedural Cohesion,Temporal Cohesion,Logical Cohesion and Coincidental Cohesion There are 6 types of coupling: Data Coupling,Stamp Coupling,Control Coupling,External Coupling,Common Coupling and Content Coupling Therefore, it is known as intra-module concept It is based on communication between two elements or fields within a single module. Therefore, it is known as inter-module concept It is based on communication between two modules.
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It is ideal to have a module with high cohesiveness which states implementation of a particular feature with low or no communication with other module It is ideal to have low coupled modules which states dependency between modules It focuses on measuring a module's functional strength It focuses on measuring a module's dependency with other modules
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It refers to relationship between two or more elements within a module It refers to relationship between two or more modules Difference between Coupling and Cohesion in Tabular form Coupling This technique is known as Modularization.įurther, Coupling and Cohesion indicate to which degree a module can carry out a task on its own and the strength of elements related to one other within that respective module.Ĭoupling measures interaction between modules whereas Cohesion focuses on interaction within a module. Coupling and cohesion are methods to measure the relationship between and within modules.Ī software system is divided into multiple modules, where each and every module are capable of performing a function independently.