Rough Order of Magnitude
Submitted by ginumon on Sat, 07/20/2013 - 18:44
Forums:
As per PMBOK , Rough order of magnitude is +/- 50% , however in many books I have seen it mentioned as
Order of Magnitude estimate = -25% to +75%
Preliminary estimate = -15% to + 50%
Budget estimate = -10% to +25%
Definitive estimate = -5% to +10%
Which one we should go with..?
