While declaring void limits the reach of the testCase() pointcut, it reduces complexity and increases protection.

虽然声明 void 限制了 testCase() 切入点的应用范围，但是这样降低了复杂性，增强了安全性。

youdao

Or, worse, retailers might be forced to adopt additional solutions on a market-by-market basis, which reduces connection with the customer and adds complexity to the IT landscape.

FORBES: Making Omni-Channel Retailing A Reality