What are the Advantages top-down design?

speed and efficiency

Explanation:

There are two main advantages that a top-down design has and these are speed and efficiency. Since decisions are made by only a handful of individuals at the top, there are fewer people to argue their own ideas and points of view as well as fewer people to convince. This means that decisions are made fairly quickly. Once a decision is made the instructions are directed to every individual at each level so that everyone's tasks are perfectly aligned with the company's goals as decided from the top.

answer; availability;