defining relationship

defining relationship

A relationship to a target concept that is always necessarily true for any instance of the source concept.

Notes

• All defining relationships represent necessary conditions. However, some necessary conditions that can be represented by OWL Axioms cannot be represented by relationships.

Example

• The defining relationships of the concept 53442002 | gastrectomy| include

  • 260686004 | method| = 129304002 | excision - action| and

  • 405813007 | procedure site - Direct| = 69695003 | stomach structure| .

Alternatives

• Defining characteristic

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