As the end of the project approaches it is unlikely that more people will be added. As the project progresses the project team tends to stabilize in terms of positions and activities, and, once the project is 80% complete, it is rarely appropriate to make further changes in staffing levels.
We capture this dynamic using willingness to change workforce.
With the new and changed equations:
required workforce = IF THEN ELSE(
Workforce < required work flow/productivity,
willingness to change workforce*required work flow/productivity +
(1-willingness to change workforce)*Workforce,
required work flow/productivity)
Units: Dmnl
This equation allows workforce reductions, but does not allow workforce increases late in the project.
willingness to change workforce =
willingness to change workforce lookup(fraction complete)
Units: Dmnl
willingness to change workforce lookup
((0,1),(0.5,0.8),(0.8,0),(1,0) )
Units: Dmnl
