Does WPM automatically store or overwrite entries? If they review and change the O&S does it keep a “baseline?
No. Once you create the record, it is in the system with a time/date stamp. If you alter the data within this O&S record, the data that was there previously will just be gone (much like if you edit the text in a Word document the text that was previously there is just gone). If you are observing a person over a period of time and want to identify changes over time, you should create a SECOND O&S record (or third, depending on how many times you observe the person). You can then compare these records to identify changes between the baseline O&S and the secondary O&S. You just need to look at the time/date stamp to differentiate between the two records.