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| ODER-Einschränkung n (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) | |||
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OR constraint : 3 do fraz, 2 tematyki |
| Pospolicie | 1 |
| Prawo | 2 |