business scenario:
1, there is a project : A
2, the first layer WBS: A
the secongd layer WBS: A1, A2
the third layer WBS: A11,A12, B21, B22,
the fourth layer WBS: A111 A112 A121 A122 B211 B212 B221 B222 B223
3, Activity assigned to WBS:
now: the same layer WBS's time don't overlap.
and the father WBS's time cover the son WBS's time
and the Activity's time is entirely in the assgined WBS's time.
Please explain me all the steps to be required.
Thanks in advance!