Final answer:
The 0/100 rule should not be used for work packages that are three months long or longer because it does not allow progress recognition until the package is fully complete, potentially distorting performance reporting over the duration of longer tasks.
Step-by-step explanation:
In the context of earned value management (EVM), the 0/100 rule is a technique that should not be used for work packages that are three months long or longer. This rule states that no value is credited to a work package until it is 100% complete. Since longer work packages may take several months to finish, using the 0/100 rule could result in significant distortions in performance reporting, because no progress is shown until the entire package is completed.
Unlike the 0/100 rule, other techniques like the 50/50 rule, Equivalent Units, and Apportioned Effort allow for partial recognition of progress which is more suitable for longer work packages. This way, project performance can be tracked more accurately and in smaller increments over time, providing a more realistic picture of project status and potential issues.