If we want to create a cost baseline that integrates work packages, we need to find a measurement system that is common to all the work packages. The most commonly used measurement systems in these cases are money, labor hours or work products. In following sequence, we will see a simple example of how to build a cost baseline, starting with the WBS!

This Gantt chart has three work packages, each scheduled to last two weeks and linked to the next finish-to-start with a one week overlap. The total project schedule is four weeks.