2.5 Conclusion 结论

Complexity comes from an accumulation of dependencies and obscurities. As complexity increases, it leads to change amplification, a high cognitive load, and unknown unknowns. As a result, it takes more code modifications to implement each new feature. In addition, developers spend more time acquiring enough information to make the change safely and, in the worst case, they can’t even find all the information they need. The bottom line is that complexity makes it difficult and risky to modify an existing code base.

复杂性来自于依赖性和模糊性的积累。随着复杂性的增加，它会导致变化放大，高认知负荷和未知的未知数。结果，需要更多的代码修改才能实现每个新功能。此外，开发人员花费更多时间获取足够的信息以安全地进行更改，在最坏的情况下，他们甚至找不到所需的所有信息。最重要的是，复杂性使得修改现有代码库变得困难且冒险。