Enhance Parameters by adding a new string field to the current list (ID, customerID, dataType, description, displaySize, displayType, extRefID, formatConstraint, isRequired, lastUpdateDate, lastUpdatedByID, and name). This could be used by administrators to record a note about each parameter.
With the addition of one simple string field, admins would finally have a quick answer to questions like, Why did we add this? How is this different from similarly named parameters? Who needs approve changes to this?