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Today, I will talk to you about what is the criteria for module division in software design, which may not be well understood by many people. in order to make you understand better, the editor has summarized the following contents for you. I hope you can get something according to this article.

The criterion of module division in software design is high cohesion and low coupling.

High cohesion and low coupling is a concept in software engineering and a standard to judge whether the software design is good or bad. it is mainly used in the object-oriented design of the program, mainly depends on whether the cohesion of the class is high and whether the degree of coupling is low.

The degree of coupling and cohesion are usually used as the standard to measure the degree of module independence in software design. One of the criteria for dividing modules is high cohesion and low coupling.

In terms of module granularity, high cohesion: as far as possible, each member method of a class accomplishes only one thing (maximum aggregation); low coupling: reducing the interior of a class, one member method calls another member method.

From the class point of view, high cohesion and low coupling: reduce the calls to other classes within the class; from the function block point of view, high cohesion and low coupling; reduce the complexity of interaction between modules (the number of interfaces, parameter data), that is, horizontal: between classes, modules and modules; vertical: between layers; as far as possible, content cohesion, data coupling.

After reading the above, do you have any further understanding of what are the guidelines for module division in software design? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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