What are the criteria for module division in software design?

This article is to share with you what the guidelines for module division should follow in software design. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The criterion of module division in software design is high cohesion and low coupling. Starting from the software requirement specification, the software design is to design the overall structure of the software system, divide the functional modules, determine the implementation algorithm of each module and write specific code according to the functional design determined in the requirement analysis stage. form the specific design scheme of the software.

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

The criteria for module division include coupling and cohesion between modules. Generally speaking, the coupling between modules is required to be as low as possible, that is, modules are as independent as possible; the degree of cohesion of modules is as high as possible, that is, the principle of high cohesion and low coupling.

Starting from the software requirement specification, the software design is to design the overall structure of the software system, divide the functional modules, determine the implementation algorithm of each module and write specific code according to the functional design determined in the requirement analysis stage. form the specific design scheme of the software.

Software design is to abstract many things and problems, and abstract their different levels and angles. Decomposing and modularizing a problem or thing makes it easier to solve the problem, and the more modules are decomposed, the more modules are decomposed. Its side effect is that it makes designers consider more coupling between modules.

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