Project managers are driven by dates. One of the key questions that all project stakeholders want answered is how long will it take to complete the project? During this week we discussed and explored two approaches to schedule development, the top$-$down approach, and the bottom$-$up approach. Based on your understanding of this concept, answer the following questions:

$$ What is the top$-$down approach to schedule development?

$$ How does the bottom$-$up approach serve to validate the top$-$down schedule?

o Which approach do you prefer and why?