Analogous estimating
Top down
Parametric estimating
Driven by measurement or parameter
Definitive estimating
Bottom up
Three-point estimating
Optimistic + most likely + and pessimistic/3
What is contingency reserve
Not included in the cost baseline but is included in the overall budget and you need permission to use
What is parametric cost estimating
Measurements such as square footage linear feet or mileage
Pert
Need definition