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Example: 1 man can marry 1 woman. The constraining makes this a 1 to 1 relation.
Constraining can be formulated like:
* 1 to 1
* 1 to
* 1 to fixed number▼
* fixed number to fixed number▼
* Optional (expressed as: ?)▼
▲1 to fixed number
▲fixed number to fixed number
▲Optional (expressed as: ?)
==Object Process Diagram==
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