| |||
| restricción OR (An indicator of a situation in which any instance of a class can participate in only one association at one time. The constraint is shown as a dashed line connecting two or more associations, which must have a class in common) | |||
| |||
| restricción OR (An indicator of a situation in which any instance of a class can participate in only one association at one time. The constraint is shown as a dashed line connecting two or more associations, which must have a class in common) | |||
