These are always gray areas. I always tend to compare to a paper chart and think of how it would be handled in that we used paper charts for years and years. Certainly, when writing a note on the right person an error is supposed to be crossed out with ONE line, corrected and initialed. But, at the same time if you were in the room with the wrong chart or the wrong name on a progress note, you would probably rip it up once finished.
With an EMR, it gets more black and white. If one has the ability to go into the database and change a record or delete a patient, then one would have the ability to change 104 degrees to 100.4 degrees or even 98.6.
As to the immunizations, it would make sense to be able to delete old Lot#s and expiration dates or take out misspelled insurance names in demographics and maybe Jon will do that in the final version of 4.0.
At this point, I will say that V.I.P.E.R. is now out of beta and rather rock solid. With V.I.P.E.R., you wouldn't have to worry with the wrong Lot#s, etc.