The version of IEC 62325-451-4.<br/>Add the class Quantity with an association to the class Point and delete attributes related to quantities in the class Point<br/>Add the class Reason with an association 0..* to the class Point<br/>
Changes:<br/> - add the class quantity (instead of attribute quantity and secondary quantity)<br/> - use of attribute quantity quality<br/> - add the class reason<br/>