 out" or "reverse" the original record (i.e. if the quantity was 10, then the quantity of the correction record is -10, as of the date corrected); then the original event can be re-entered correctly with the earlier correct date and no need for the <code>corrects</code> link. Alternatively, the correction event could just record the difference, as of the date of correction, with the <code>corrects</code> link to the original.</p>
<p>If the original event was input to or output of a process, or was part of a