1. A baseline is a snapshot of the planned number of hours at the start of the project (as of a base date) i.e. Baseline #1
2. Later one may need to change the number of hours, the work column will show the new number hours and thus the (within the capacity report) Baseline and Work Variance columns will show the difference.
NOTE: the PM should not change (i.e. re-baseline) without agreement from line managers/resources/sdm