The development team is building a new product for their company. This is a new product type at their company, and the market for the product is extremely unstable. According to the product manager a key to success will be to have an extremely accurate
estimate on the resource needs for the project, since the company is resource constrained. Which type of duration estimating approach is the most accurate?

A. Bottom-up estimating
B. Parametric estimating
C. Fast tracking
D. Analogous estimating