When you are developing the estimates for project, you choose to add the individual estimates for the activities that comprise each phase. What type of estimation method are you using?

A.
Parametric estimating

B.
Bottom-up estimating

C.
Top-down estimating

D.
Analogous estimating

Explanation:
Bottom-up estimating: Estimating the cost of individual work items and then rolling up the costs to arrive at a project total: It is more accurate. Analogous estimating: Analogous estimating is also called top-down estimating and uses the actual cost of a previous, similar project as the basis for estimating the cost of the current project. Parametric estimating: Using project characteristics (or parameters) in a mathematical model to predict costs (e.g., price per square meter).