
163Chapter eight: Fundamentals of earned value
Flaws in earned value schedule tracking
There are many problems with earned value schedule tracking. The most
obvious of these is similar to the problem in our golf metaphor when we
tried to make projections about the amount of time it would take to play
the round of golf based on a par system that measured number of strokes.
Attempting to make project duration estimates based on an earned value
system that measures cost (or other resource usage factors) just doesn’t
work very well.
If, as we have said several times in this book, cost and value are two
very different things whose quantication obeys ...