The entire project is broken into Work Packages (workbreakdown structure): build base, shoot and chip, etc.
Estimated unit quantities for each work package are calculatedfrom the plans and specifications at an appropriate level ofdetail.
The corresponding unit prices and productivity rates areobtained from historical data – We will use the R. S. Meansmanual in this class.
Work Package (or Task or Activity) durations and costs arederived from the historical data as applied to the estimates.
These data serve as inputs to the scheduling process whichresult in Bar-Charts similar to the one on the next slide.
Section 12.9 in Halpin has some good examples of breaking a project into work packages. In is good practice to use the Means Manual as a guide.