Oracle Exam 1z0-1003 Topic 4 Question 5 Discussion

A customer has found that there are some instances where their technicians have recorded either exceptionally short (for example, "one-minute-wonders") or long (for example, they forgot to set the status to "complete") activity durations.

Given the importance of accurate data in a time-based self-learning system, which two constraints are in place and can be modified to ensure that outlier circumstances such as these do not affect future activity duration estimations?