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CreatIng work breakdown struCtures
• ere is a 99.7% chance of successful completion of the proj-
ect if 413 person-days are invested.
• ere is a 99.9% chance of successful completion of the proj-
ect if 437 person-days are invested.
e rst two statements are especially interesting. Wouldn’t it be
really cool to demonstrate using science and proven statistical laws
that the probability of nishing the above project with 290 person-
days invested is 0.3%?
Common Estimation Oversights What are some common tasks that
frequently get overlooked by project managers, business analysts, and
other technical team members? Table12.3 is a list of qu